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PT Health Watch: Common cancer risk factors that should not be ignored

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Cancer is one of the leading causes of death worldwide, but health experts say many cancer cases are linked to preventable risk factors.

The World Health Organisation (WHO) estimates that cancer caused nearly 10 million deaths globally in 2024, accounting for almost one in six deaths worldwide. It says about 38 per cent of cancers can currently be prevented by avoiding known risk factors and implementing evidence-based prevention strategies.

Cancer continues to affect thousands of families in Nigeria every year. According to WHO, an estimated 130,000 new cancer cases were diagnosed in 2022, with 80,000 deaths.

While cancer can result from several factors, including genetic changes, age and environmental exposures, some established risks are linked to infections, substances and behaviours that can be prevented.

In a recent health awareness video, Nigerian physician and health communicator, Chinonso Egemba, popularly known as Aproko Doctor, highlighted some of these risks, including hepatitis B, aflatoxin, tobacco, alcohol and human papillomavirus (HPV).

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Hepatitis B

According to Aproko Doctor, hepatitis B is particularly dangerous because it can remain in the body without obvious symptoms while damaging the liver.

“When it goes untreated and untested, it’s a virus that starts attacking your liver. Many Nigerians currently are living with it right now, and many of them don’t know because it can sit quietly inside your body for years without a single symptom,” he said.

His warning is supported by WHO, which says chronic hepatitis B infection can cause cirrhosis and liver cancer.

WHO estimates that 240 million people were living with chronic hepatitis B globally in 2024, with the infection contributing to about 1.1 million deaths, mainly from cirrhosis and hepatocellular carcinoma, the most common type of primary liver cancer.

Hepatitis B is preventable through vaccination. WHO recommends hepatitis B vaccination as an important measure for preventing infection and its long-term complications.

Aflatoxin in food

Aproko Doctor warned that the cancer risk can begin with improperly stored food.

“Aflatoxin is basically a poison produced by fungus,” he explained, noting that it can contaminate foods such as grains and groundnuts when they are poorly stored.

According to WHO, Aflatoxins are a group of poisonous mycotoxins produced by certain moulds (Aspergillus species) that contaminate food crops and pose severe health risks like liver cancer. They are toxins produced by certain moulds and can contaminate crops including maize, sorghum, rice and groundnuts. Exposure to aflatoxins can cause liver cancer.

WHO advises discarding food that appears mouldy, discoloured, or shrivelled because mycotoxins can penetrate beyond the visibly affected part.

Aflatoxin exposure can also be particularly dangerous in people infected with hepatitis B. The WHO/FAO Joint Expert Committee on Food Additives says hepatitis B infection is an important contributor to the ability of aflatoxins to cause liver cancer.

This means food storage and handling can also form part of cancer prevention, particularly in communities where grains and other foods are stored for long periods in warm or damp conditions.

Tobacco smoking

Tobacco remains one of the most established cancer risks.

“Smoking generally, as long as you light it with fire and put it on your body, increases the risk of cancer, especially tobacco smoke,” Aproko Doctor said.

He added that the danger was not limited to lung cancer because tobacco smoke contains cancer-causing chemicals that can damage cells throughout the body.

WHO says tobacco smoke contains more than 7,000 chemicals, at least 69 of which are known to cause cancer. Tobacco use is the world’s single greatest avoidable risk factor for cancer mortality.

Smoking can cause cancers of the lung, mouth and throat, oesophagus, bladder, kidney, liver, pancreas, stomach, colon and rectum, cervix and blood, among others.

Alcohol

Alcohol is another established cancer risk. WHO confirms that alcohol consumption increases the risk of several cancers, including cancers of the mouth, throat, oesophagus, liver, colorectum and breast.

WHO also says no level of alcohol consumption can be considered risk-free in relation to cancer.

“The more alcohol you drink, the higher the risk. However, how much and how fast the risk from drinking alcohol increases differs by cancer type,” it noted.

The global body explained that alcohol increases the likelihood of developing certain cancers, with the risk influenced by the amount consumed and other factors.

Human papillomavirus

According to Aproko Doctor, the virus is common, and some types can cause cancer, particularly cervical cancer.

“In women, this particular HPV is responsible for cervical cancer,” he noted.

According to the WHO, persistent infection with high-risk HPV types causes nearly 99 per cent of all cervical cancer cases. HPV is also associated with cancers of the vulva, vagina, anus, penis and mouth and throat.

Although HPV infection is very common, not everyone infected with the virus will develop cancer. WHO says about 90 per cent of HPV infections are controlled naturally by the body, while persistent infection with high-risk types can lead to cancer.

WHO recommends a complete three-step strategy to stop cervical cancer through vaccination, screening, and treatment.

READ ALSO: WHO restricts Ervebo use in Bundibugyo outbreak

Preventing Cancer

A 2026 global analysis by WHO and its International Agency for Research on Cancer (IARC) estimated that 37 per cent of all new cancer cases diagnosed globally in 2022, about 7.1 million cases, were linked to preventable causes.

Tobacco was the leading preventable cause, accounting for 15 per cent of all new cancer cases, followed by cancer-causing infections at 10 per cent and alcohol at three per cent.

WHO recommends avoiding tobacco, reducing or avoiding alcohol, maintaining a healthy weight, eating a healthy diet, engaging in regular physical activity and receiving recommended vaccinations against cancer-causing infections such as hepatitis B and HPV.

As Aproko Doctor noted, understanding the risks is an important first step.“Don’t let anybody deceive you. Say no to smoking in any form,” he said.


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Jos University Teaching Hospital’s psychiatric facility stretched as mental health cases rise

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For three days, Emmanuel John waited anxiously in the psychiatric emergency unit of the Jos University Teaching Hospital (JUTH), hoping a bed would become available for his daughter.

She had been referred to the hospital after suffering a severe mental health episode, but every bed in the psychiatric ward was occupied. She remained in the emergency unit, where doctors and nurses monitored her condition while the family waited for a vacant bed.

“We spent three days there because there was no bed,” Mr John told PREMIUM TIMES.

When a bed eventually became available, the family’s relief was short-lived. According to Mr John, his daughter was discharged early to yield her bed space to patients in more critical condition.

“I was disappointed, but I didn’t blame the doctors,” he said. “They were doing everything they could. The real problem is that there are too many patients and too few beds.”

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Mr John’s experience illustrates the growing strain on one of North-central Nigeria’s major referral centres for mental healthcare.

John’s experience is becoming increasingly common at JUTH. As more Nigerians seek treatment for mental illness, the hospital’s psychiatric department is struggling to cope with demand, leaving patients waiting for admission, stretching healthcare workers and exposing wider weaknesses in Nigeria’s mental healthcare system.

A PREMIUM TIMES investigation, based on interviews with patients’ relatives, healthcare workers, hospital management and mental health experts, found that rising demand for psychiatric services is stretching JUTH’s capacity, forcing clinicians to make difficult decisions about admissions and discharges.

Although JUTH has not publicly released annual psychiatric admission figures, hospital officials and mental health workers interviewed by PREMIUM TIMES said they have witnessed a steady increase in patients over recent years.

They attributed the trend largely to rising substance abuse, worsening economic hardship, insecurity and increased public awareness that has encouraged more people to seek treatment.

Families caught in crisis

Mr John’s family is not alone.

Patience Samuel recalled a similar ordeal after her son developed a severe mental health condition and was taken to JUTH for specialist care.

Following an assessment, the family was informed that no admission bed was available.

“They attended to him, but they couldn’t admit him because there was no bed,” she said.

With no alternative, the family sought treatment at a private hospital, where the cost of care placed a heavy financial burden on them.

“If there had been space at JUTH, we would have stayed because treatment there is more affordable,” she said.

Their experiences highlight the difficult choices confronting many Nigerian families who depend on public hospitals for mental healthcare.

An overstretched facility

During several visits to JUTH’s psychiatric department, this reporter observed anxious relatives waiting around the emergency unit as healthcare workers attended to patients awaiting admission.

Hospital management confirmed that the department currently operates only two inpatient wards, a 20-bed male ward and a 15-bed female ward. Once the wards reach capacity, newly referred patients remain in the emergency section until space becomes available.

Female ward Psychiatric department
Female ward Psychiatric department

Healthcare workers, who spoke on condition of anonymity because they were not authorised to comment publicly, described the shortage as a persistent challenge.

According to them, clinicians are frequently compelled to balance the needs of patients already on admission with those arriving in critical condition. As a result, patients whose conditions have stabilised may be discharged earlier than doctors would ordinarily prefer to create room for emergency cases.

For many families, the alternatives are limited: endure days of uncertainty while waiting for admission or seek treatment at private facilities where the cost of care is often beyond their means.

Patients at the Department
Patients at the Department

A national challenge

The pressure on JUTH mirrors a wider crisis confronting Nigeria’s mental healthcare system.

According to the Federal Ministry of Health, only about one in five Nigerians living with severe mental illness receives appropriate treatment, leaving an estimated treatment gap of about 80 per cent.

A shortage of specialists has further weakened access to care. Nigeria has fewer than 300 practising psychiatrists serving a population of more than 200 million people, with most concentrated in major urban centres.

Mental health advocates attribute the situation to years of inadequate funding, persistent stigma, limited community-based services and the migration of healthcare professionals.

These challenges have increased pressure on tertiary hospitals such as JUTH, which now receive referrals from neighbouring states, even as their resources remain limited.

The growing burden comes despite recent policy reforms aimed at improving mental healthcare. The National Mental Health Act replaced decades-old legislation and seeks to strengthen mental health services, promote community-based care and protect the rights of people living with mental illness.

However, experts say meaningful implementation will require sustained funding, improved infrastructure and the recruitment of more specialised personnel.

Against this backdrop, JUTH has become a critical lifeline for many families seeking affordable psychiatric care, making the pressure on its limited facilities increasingly difficult to manage.

Hospital management responds

The Chief Medical Director of Jos JUTH), Pokop Bupwatda, acknowledged that the psychiatric department is operating under immense pressure but said the hospital has begun taking steps to improve capacity and service delivery.

In an interview with PREMIUM TIMES, he linked much of the increase in psychiatric admissions to the growing abuse of psychoactive substances, particularly among young people.

“We have seen many cases related to substance abuse, especially among young people,” he said. “It is one of the biggest challenges confronting mental healthcare today.”

Mr Bupwatda said the problem extends beyond patients seeking treatment.

“We have even discovered some members of our staff abusing substances. Whenever such cases arise, we ensure they receive appropriate rehabilitation because our priority is to help them recover.”

He stressed that tackling substance abuse requires a coordinated response involving families, schools, religious institutions, communities and government, arguing that hospitals alone cannot reverse the trend.

His concerns are consistent with national findings.

According to the United Nations Office on Drugs and Crime (UNODC), an estimated 14.3 million Nigerians aged 15 to 64 used psychoactive substances in 2018, representing a prevalence rate of 14.4 per cent—more than twice the global average at the time.

The survey remains Nigeria’s most comprehensive national assessment of drug use and continues to inform policy discussions on substance abuse and mental health. Cannabis remains the most commonly used illicit drug, while the non-medical use of opioids such as tramadol and codeine continues to drive addiction and psychiatric disorders across the country.

Mental health specialists say prolonged drug abuse can trigger psychosis, worsen existing psychiatric illnesses and increase the likelihood of relapse, making treatment more difficult and recovery longer.

Mr Bupwatda said the Federal Government’s policy requiring drug tests for prospective employees of federal health institutions is one of several measures aimed at addressing the challenge.

“The objective is to identify those who need help before they enter the workforce,” he said. “Where necessary, rehabilitation is provided because the goal is not punishment but recovery.”

Shortage of specialists

Beyond inadequate bed space, the hospital is also struggling with a shortage of specialised personnel.

Mr Bupwatda admitted that the psychiatric department is overwhelmed, describing the challenge as part of a wider healthcare workforce crisis affecting Nigeria.

“Yes, they are overwhelmed,” he said. “But this reflects the broader shortage of healthcare workers across the country. It is not a challenge peculiar to psychiatry.”

He explained that psychiatric care requires specialised training, making recruitment considerably more difficult than in many other areas of medicine.

“It is not every doctor or nurse that can work in psychiatry,” he said. “We are training more psychiatric nurses to strengthen the department and improve service delivery.”

During visits to the psychiatric department, this reporter observed relatives sitting quietly outside the emergency unit while nurses moved between patients awaiting admission. Inside, clinicians attended to new referrals even though the inpatient wards were already full, highlighting the pressure facing the department.

Despite these constraints, relatives of patients praised the commitment of doctors and nurses, saying staff continued to provide compassionate care despite limited resources.

Security concerns

The investigation also uncovered concerns about security within parts of the psychiatric complex.

This reporter observed sections of the complex that were not fully enclosed. Some healthcare workers, who requested anonymity because they were not authorised to speak publicly, expressed concern that the layout could make it easier for patients to leave the premises without authorisation.

Others alleged that prohibited substances occasionally find their way into the facility through visitors, potentially undermining the rehabilitation of patients receiving treatment for drug-related mental health conditions.

Responding to the allegations, Mr Bupwatda said he was unaware of the concerns but promised to investigate them.

“I am hearing that for the first time,” he said. “I will discuss it with the Head of Department. If there are security lapses, we will address them because the safety of our patients remains our priority.”

He added that strengthening security forms part of the hospital’s broader expansion plans, which are expected to improve both patient safety and the quality of psychiatric care.

Expansion offers hope, but challenges remain

Mr Bupwatda said the ongoing expansion of JUTH’s psychiatric complex is expected to ease pressure on the department by increasing admission capacity and improving the treatment environment.

According to him, the complex was designed to be developed in phases, with the existing wards representing only the first stage of the project.

He disclosed that the second phase is between 90 and 95 per cent complete and will provide additional wards and treatment spaces once commissioned.

“Our goal is to ensure that more patients receive timely care in a safer and more conducive environment,” he said.

The CMD added that JUTH’s relatively affordable treatment costs, compared with many private hospitals, have also contributed to the growing number of referrals from Plateau and neighbouring states.

“For many families, this hospital remains the most affordable option,” he said. “That is why we must continue expanding our facilities to meet the increasing demand.”

Experts call for wider reforms

Mental health experts, however, say expanding one hospital will not be enough to address Nigeria’s widening mental healthcare gap.

A Jos-based mental health expert, Mary-Jane Samuel, described the experiences of patients and their families as evidence of years of underinvestment in mental health services.

“The burden of mental illness is increasing, but investment in mental healthcare has remained inadequate,” she told PREMIUM TIMES.

While welcoming JUTH’s expansion project, she said the country must also invest in human resources by recruiting more psychiatrists, psychologists, psychiatric nurses, occupational therapists and social workers.

READ ALSO: Tinubu reappoints JUTH chief medical director

According to her, strengthening mental healthcare at primary and secondary health facilities would reduce unnecessary referrals to tertiary hospitals.

“Many patients should be able to access treatment closer to their communities instead of travelling long distances to referral hospitals,” she said. “Early diagnosis and treatment at lower levels of care will reduce the burden on facilities like JUTH.”

Mrs Samuel also advocated increased funding for psychiatric medicines, counselling services and rehabilitation programmes, stressing that effective mental healthcare extends beyond hospital admission.

Although the National Mental Health Act provides a legal framework for improving access to care, protecting patients’ rights and promoting community-based treatment, Mrs Samuel, however, cautioned that legislation alone will not transform services without increased funding.

She said that expanding psychiatric units, recruiting specialists and strengthening mental healthcare at primary and secondary facilities are essential if tertiary hospitals such as JUTH are to avoid becoming overwhelmed.

Waiting for change

For Emmanuel John, the debate over mental health funding is deeply personal.

He still remembers the anxiety of watching his daughter spend three days in JUTH’s emergency unit because no bed was available.

Although he commended the doctors and nurses for their professionalism, he believes no family should have to endure such an experience before receiving specialist care.

“I hope the government completes the new building quickly,” he said. “If there are more beds, other families will not have to go through what we experienced.”

Mrs Samuel expressed a similar hope.

“If there are more wards and more doctors, it will help families like ours,” she said.

Months after his daughter’s admission, Emmanuel John still remembers the uncertainty of waiting three days for a hospital bed. While he remains grateful for the care she received, he believes no family should have to wait during a mental health emergency because of inadequate facilities.

His experience reflects a challenge extending far beyond JUTH. As mental health needs continue to grow across Nigeria, experts say improving access to care will require more than new laws. It will demand sustained investment in specialist personnel, hospital infrastructure and community-based services to ensure that families seeking help can receive timely treatment when they need it most.


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NARD demands prosecution over alleged assault of doctor at Abuja hospital

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The Nigerian Association of Resident Doctors (NARD) has called for the immediate arrest and prosecution of two people allegedly involved in the assault of a medical officer at Gwarinpa General Hospital, Lifecamp, Abuja.

NARD made the demand in a statement issued on Friday, following the alleged assault of a senior medical officer while on call at the hospital’s Accident and Emergency Unit on 31 August.

According to the association, a patient physically attacked the doctor and his companion following a disagreement over his clinical assessment.

The alleged assailants also threatened the doctor and his family, NARD said.

The association described the incident as unacceptable, saying it posed a serious threat to the safety, dignity and welfare of healthcare workers providing essential services to the public.

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48-hour service reduction

NARD said it supports the Association of Resident Doctors, FCT Administration (ARD-FCTA), resolution to embark on a 48-hour step-down of services at Gwarinpa General Hospital.

The action commenced at 8 a.m. on 3 September and is expected to end at 8 a.m. on 5 September.

The association said the action was in line with the North Central Caucus Guidelines for responding to assaults against its members.

NARD commended the leadership and Congress of ARD-FCTA for exercising “patience, restraint, and maturity” by giving relevant authorities a reasonable time to address the matter.

NARD demands action

The doctors’ association called on the Nigeria Police Force and other security agencies to immediately apprehend, investigate, and prosecute the alleged assailants in accordance with the law.

“Any delay in taking decisive action risks creating a dangerous precedent and further exposing healthcare workers to violence,” the association said.

NARD also urged the FCT Hospitals Management Board and other relevant authorities to strengthen security across healthcare facilities, particularly Accident and Emergency Units.

It said improved security was necessary to protect healthcare workers, patients and hospital property.

The association expressed solidarity with the affected doctor and his family, assuring its members that it remained committed to protecting their safety, dignity and welfare.

ALSO READ: Assault on doctor triggers fresh strike at teaching hospital, months after EFCC controversy

“Violence against healthcare workers is unacceptable,” NARD said, stressing that doctors must be allowed to perform their duties in a safe and secure environment.

Recent case

The incident comes amid renewed concerns over violence against healthcare workers and its impact on hospital services.

On Wednesday, resident doctors at the University of Uyo Teaching Hospital (UUTH), Akwa Ibom State, began an indefinite strike following the alleged assault of a house officer by an elderly woman at the hospital.

The Nigerian Medical Association (NMA), Akwa Ibom State branch, gave the hospital management and security agencies 48 hours to identify and prosecute those responsible for the alleged assault.

The Uyo action followed another disruption at the same hospital in May, when doctors embarked on an indefinite strike after an operation by officials of the Economic and Financial Crimes Commission (EFCC) at the facility triggered controversy over alleged assault and the arrest of hospital workers.


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