Common Illnesses in Nigeria

Common Illnesses in Nigeria: The Diseases That Bring Millions of Nigerians to the Doctor Every Year

Last Updated: 28 June 2026

The common illnesses in Nigeria are not always the dramatic diseases that make headlines. Most visits to clinics and hospitals are due to a relatively small group of conditions such as malaria, typhoid, stomach problems, high blood pressure and respiratory infections. The good news is that many of these illnesses can be treated or managed through online doctor consultation, making healthcare more accessible and affordable for millions of Nigerians. 

What Are the Most Common Illnesses in Nigeria?

Although the diseases vary by season and region, these are some of the most common reasons Nigerians visit clinics and hospitals every day:

• Malaria

• Typhoid fever

• Gastroenteritis

• Peptic ulcer disease and acid reflux

• High blood pressure

• Cough and upper respiratory infections

• Body pains and musculoskeletal problems

• Skin infections and rashes

• Urinary tract infections

• Type 2 diabetes

Many of these conditions can be assessed early through telemedicine and online healthcare.

Why Is Malaria Still the Number One Illness in Nigeria?

Malaria remains one of the biggest health problems in Nigeria.

Almost every Nigerian has either suffered from malaria or knows someone who has.

Malaria is caused by a parasite that is transmitted through the bite of infected female mosquitoes. Poor drainage systems and stagnant water around homes continue to fuel its spread.

Patients usually complain of:

• Fever

• Body weakness

• Headaches

• Chills

• Joint pains

Malaria is one of the illnesses that can often be managed through online doctor consultation. A doctor can assess symptoms, recommend a rapid diagnostic test and prescribe treatment where appropriate.

Why Is Typhoid Fever So Common?

Typhoid fever remains one of the most common diagnoses in Nigerian clinics.

It is caused by bacteria that spread through contaminated water and poor food hygiene.

Many communities still lack reliable pipe-borne water and depend on boreholes and other water sources that may not always be properly monitored.

Common symptoms include:

• Fever

• Abdominal pain

• Weakness

• Diarrhoea or constipation

• Loss of appetite

Typhoid can often be assessed online, although laboratory tests may be needed before antibiotics are prescribed.

Why Do So Many Nigerians Suffer from Running Stomach?

Gastroenteritis, commonly called "running stomach," is another major reason people visit hospitals.

It is usually caused by:

• Food poisoning

• Contaminated water

• Viral infections

• Poor food handling

Symptoms include:

• Diarrhoea

• Vomiting

• Stomach cramps

• Fever

Many mild and moderate cases can be managed through telemedicine with advice on hydration, medications and warning signs that require hospital care.

Why Are Stomach Ulcers and Acid Reflux Increasing?

Many Nigerians complain of burning chest pain or stomach pain that is often described as an ulcer.

The main causes include:

• Infection with Helicobacter pylori bacteria.

• Irregular eating habits.

• Excessive use of painkillers such as ibuprofen and diclofenac.

• Stress.

Economic hardship and self-medication may also be contributing to the increase in stomach-related complaints.

Fortunately, many of these conditions can be effectively managed through online consultation.

Why Is High Blood Pressure Increasing in Nigeria?

High blood pressure is now one of the most common chronic illnesses in Nigeria.

It is increasingly being seen in younger adults as lifestyles change.

Contributing factors include:

• High salt intake.

• Physical inactivity.

• Obesity.

• Stress.

• Family history.

Many people discover they have high blood pressure only when they visit the hospital for another problem.

High blood pressure is one of the conditions that is particularly well suited to telemedicine because patients can monitor their blood pressure at home and share their readings with a doctor.

Why Are Cough and Catarrh So Common?

Upper respiratory infections remain a major reason for clinic visits.

They tend to increase during:

• Harmattan.

• Rainy seasons.

• Periods of increased air pollution.

Most cases are caused by viruses and improve with supportive treatment.

Online doctor consultation is ideal for many of these infections because a doctor can assess symptoms and identify warning signs that require physical examination.

Why Do So Many Nigerians Complain of Body Pains?

Body pains, waist pain and joint pains are extremely common.

The causes include:

• Heavy manual labour.

• Poor posture.

• Long periods of sitting.

• Arthritis.

• Muscle strain.

Many people do not realise that these problems can often be managed through virtual consultations and guided home treatment programmes.

Why Are Skin Problems So Common?

Skin diseases affect both children and adults.

Common problems include:

• Ringworm.

• Fungal infections.

• Boils.

• Eczema.

• Heat rashes.

• Allergic reactions.

One of the advantages of telemedicine is that skin conditions are often easy to assess using photographs and video consultations.

Dermatology is one of the areas where online healthcare performs particularly well.

Why Are Urinary Tract Infections Common?

Urinary tract infections are especially common among women.

Symptoms include:

• Pain during urination.

• Frequent urination.

• Lower abdominal pain.

• Urgency to pass urine.

Many uncomplicated cases can be assessed through online consultation and laboratory tests can be requested where necessary.

Why Is Diabetes Increasing in Nigeria?

Type 2 diabetes is increasing rapidly across Nigeria.

The main reasons include:

• Weight gain.

• Physical inactivity.

• Diets high in refined carbohydrates and sugary drinks.

• Ageing.

• Family history.

Patients commonly complain of:

• Excessive thirst.

• Frequent urination.

• Weight loss.

• Tiredness.

Like high blood pressure, diabetes is very suitable for telemedicine because patients can monitor their blood sugar levels at home and share their readings with their doctor.

Can Most Common Illnesses in Nigeria Be Treated Online?

Yes, many common illnesses can be assessed and managed through online doctor consultation.

Examples include:

• Malaria

• Mild gastroenteritis

• Stomach ulcers and acid reflux

• High blood pressure follow-up

• Diabetes follow-up

• Cough and colds

• Skin conditions

• Urinary tract infections

• Body pains

However, some patients will still require:

• Laboratory tests.

• Physical examinations.

• Hospital admission.

• Emergency treatment.

Online healthcare should therefore be seen as a way to improve access to care and not as a replacement for hospitals.

Why Is Telemedicine Important for Nigeria?

Nigeria faces major healthcare challenges:

• Shortage of doctors.

• Traffic congestion.

• Poor access to healthcare in rural communities.

• Rising healthcare costs.

Telemedicine and healthcare on WhatsApp can help bridge these gaps by making it easier for patients to speak to doctors without travelling long distances.

Platforms such as Betadoc have been designed specifically for low-resource environments and poor internet connectivity, allowing patients to talk to doctors through simple technology that they already use every day.

Related Articles

• Online Healthcare in Nigeria

• Online Doctor Consultation in Nigeria

• Healthcare on WhatsApp

• Rural Healthcare in Nigeria

• Common Childhood Illnesses in Nigeria

• Women's Diseases in Nigeria

• Primary Healthcare in Nigeria

• The Future of Digital Health in Africa

• Affordable Healthcare in Nigeria

Need to talk to a doctor today? Betadoc connects you with licensed doctors on WhatsApp without registration or an app.

Author

Dr. Machim Enyiegbulam is a Nigerian medical doctor and founder of Betadoc. He has a special interest in digital health, primary healthcare and improving access to healthcare in underserved communities through simple technologies.

Medical Reviewer

Medically reviewed by Dr. Machim Enyiegbulam, MBBS.

References

1. World Health Organization

2. Nigeria Centre for Disease Control and Prevention

3. Federal Ministry of Health and Social Welfare

4. Peer-reviewed studies on telemedicine and chronic disease management.

5. Peer-reviewed studies on digital healthcare in low- and middle-income countries.