Common Health Conditions in African and South African Families

Are Africans more likely to get diabetes?

People of African descent have a higher risk of developing Type 2 diabetes and hypertension compared to some other ethnic groups. This is due to a combination of genetic, dietary, and environmental factors. Regular health checks and early screening are recommended, especially if there is a family history.

Understanding which health conditions are more common in your community is an important part of preventive health. This does not mean these conditions are inevitable — many can be prevented or managed effectively with early action.

Type 2 Diabetes

Research consistently shows that people of sub-Saharan African descent have a higher risk of developing Type 2 diabetes. Risk factors include family history, lifestyle changes after migration (such as changes to diet and activity levels), and certain genetic factors.

Symptoms to watch for:
Increased thirst and frequent urination
Fatigue
Blurred vision
Slow-healing wounds
Tingling or numbness in hands or feet

Many people with Type 2 diabetes have no symptoms in the early stages — this is why regular screening is important. Ask your GP for a blood sugar test if you have risk factors.

Hypertension (High Blood Pressure)

High blood pressure is significantly more common in people of African descent and tends to develop at a younger age and be more severe. It often has no symptoms — which is why it is called the "silent killer." Uncontrolled hypertension significantly increases the risk of stroke, heart attack, and kidney disease.

Ask your GP to check your blood pressure at least once a year, even if you feel well.

Sickle Cell Disease and Trait

Sickle cell disease is a genetic condition more common in people of African, Caribbean, Mediterranean, and Middle Eastern descent. Many people carry the sickle cell trait (one copy of the gene) without having the disease. If both parents carry the trait, their children may develop sickle cell disease.

In New Zealand, newborn screening for sickle cell disease is not routine in all regions — if you have family history, discuss this with your GP or midwife.

Cardiovascular Disease

African communities have higher rates of cardiovascular disease (heart disease and stroke), partly related to higher rates of hypertension and diabetes. Regular blood pressure and cholesterol checks are an important preventive measure.

What to do

Get a health check — Ask your GP for a cardiovascular risk assessment, blood sugar test, and blood pressure check. In New Zealand, free or subsidised health checks are available for adults over 45 (35 for Māori, Pacific, and those with diabetes or family history).
Know your family history — Tell your doctor about conditions that run in your family.
Monitor symptoms — Do not dismiss symptoms as unimportant. Early detection makes a significant difference.

Talk to Dr. Vital

If you are concerned about symptoms or your family health history, [talk to Dr. Vital](/chat) to understand what might be relevant and how to discuss it with your GP.