Shocking signs of silent diabetes every Nigerian adult should never ignore

Diabetes is rapidly becoming one of the most serious public health crises in Nigeria, yet many adults remain dangerously unaware of its early warning signs. According to the World Health Organization (WHO), more than 537 million adults worldwide are currently living with diabetes.

Of this number, Africa accounts for over 24 million cases—with a staggering portion of these going undiagnosed. In Nigeria, factors such as increasing urbanisation, sedentary routines, and unhealthy eating habits are fueling the rise of this chronic condition.

Catching the early signs of diabetes is critical. Without timely intervention, the condition can spiral into severe complications like kidney failure, vision loss, stroke, and nerve damage. Here are seven alarming symptoms every Nigerian adult should watch out for—before it’s too late.

1. Excessive thirst (Polydipsia)

If you find yourself constantly reaching for water—even when the weather isn’t scorching—take it seriously. It may be more than just dehydration.

“Persistent thirst is the body’s way of compensating for fluid loss caused by high glucose levels,” says the WHO in its global diabetes fact sheet.

“It’s a classic sign of undiagnosed diabetes, especially in low-resource settings.”

On Friday, May 30, if you notice this persistent thirst that water doesn’t quench, don’t ignore it. In Nigeria’s heat, it’s easy to write it off—but it could be a sign of something much more serious.

2. Frequent urination (Polyuria)

Waking up several times in the night to urinate or needing to use the toilet more often during the day? It might not just be a full bladder.

According to the International Diabetes Federation (IDF), “When blood sugar levels are too high, the kidneys try to remove excess glucose through urine, leading to frequent urination.”

On Saturday, May 31, pay attention to how often you’re urinating—especially if it’s paired with increased thirst. The two symptoms often go hand in hand and signal a need for immediate medical evaluation.

3. Sudden and unexplained weight loss

If the number on your scale drops without you dieting or exercising more, don’t celebrate just yet. It could be a red flag.

When the body can’t access energy from glucose, it starts to burn fat and muscle instead. In many Nigerian communities, unintentional weight loss is sometimes misinterpreted as a “healthy” sign—but it could actually be a warning.

If on Sunday, June 1, your clothes feel looser and you haven’t made any lifestyle changes, it’s time to ask questions—and see a doctor.

4. Constant fatigue or weakness

Dragging through your day despite a full night’s sleep? It may be more than just stress or long hours.

Chronic tiredness is frequently mistaken in Nigeria for malaria or being “overworked,” but persistent fatigue—especially when paired with other symptoms—demands attention.

If on Monday, June 2, you feel drained despite adequate rest, don’t just shrug it off. It may be your body’s way of waving a red flag.

5. Blurred vision

If your vision becomes suddenly blurry or you find it hard to focus, don’t assume it’s just eye strain or aging.

The WHO explains that high glucose levels can cause the lens of the eye to swell, leading to changes in shape and difficulty focusing.

On Tuesday, June 3, if your vision isn’t as sharp as usual—even temporarily—it could be a warning sign of diabetic retinopathy. Left unchecked, this can lead to permanent vision loss.

6. Slow healing of wounds and infections

If minor cuts, bruises, or sores—especially on your feet—aren’t healing quickly, it may be more than poor hygiene.

According to the IDF, “Diabetes impairs blood flow and weakens the immune system, which delays healing and increases the risk of infection.”

On Wednesday, June 4, take a closer look at that sore that’s refusing to close up. Many Nigerian adults only seek help when infections become critical—don’t wait that long.

7. Tingling, numbness, or pain in hands and feet

This is known as diabetic neuropathy, a form of nerve damage caused by long-term high blood sugar levels.

The sensation may start as a mild tingling but can progress to pain or complete numbness. With limited access to neurologists in many parts of Nigeria, early recognition of this symptom is crucial.

If on Thursday, June 5, your fingers or toes feel odd—even when you’re resting—don’t ignore it. It could be the first sign of long-term complications setting in.

When to seek help

If you’re experiencing even one of these symptoms, get tested. Blood sugar tests are both affordable and widely accessible across Nigeria.

“Early diagnosis and proper management can prevent most of the serious complications associated with diabetes,” the WHO stated in its 2023 health report.