Diabetes causes excess blood glucose, and while many people have learned how to manage the condition, others may have more difficulty trying to maintain a healthy blood sugar level.

The skin is dark

Dark skin can be a possible indicator of the disease, including spots on the neck, groin and armpits.

Fruity breath

This symptom is specifically known as diabetic ketoacidosis.

Excess ketones in the bloodstream usually exit the body through urine, but when the body begins breaking down fat cells for energy as an alternative to not being able to use insulin, it can lead to bad breath.


Diabetes can cause nausea and dizziness due to high blood sugar.

An increase in high glucose levels can also lead to constant urination, which can lead to dehydration.

Recurrent infections

Unfortunately, diabetes can weaken your immune system, which can make you more susceptible to infections.

Vision changes

Changes in your vision can also indicate that you may have diabetes.

High blood sugar can affect the fluid levels in your eyes, which may lead to blurred vision, difficulty focusing on things, or swelling around your eyes.

Mood Swings

Another sign of undiagnosed diabetes could be a change in your mood such as feeling more irritable than usual.


Another indicator that you may have diabetes is a sudden feeling of itching or peeling of the skin, especially in the hands and feet.

Extremity pain

High sugar levels can cause nerve damage. You may notice numbness, tingling, or a burning sensation in your extremities.

Dry mouth

Although many people may experience dry mouth occasionally, it is also classified as a major sign of diabetes.

Weight loss

You may notice a sudden drop in body weight when your body has difficulty producing or using insulin properly.