According to the World Health Organization, hyperglycemia refers to elevated blood sugar levels.

This condition is diagnosed when fasting blood glucose exceeds 7.0 mmol/L (126 mg/dL) and rises above 11.0 mmol/L (200 mg/dL) two hours after eating.

Hyperglycemia most often affects individuals living with diabetes.

The main contributors are the body’s inability to respond properly to insulin or the destruction of insulin-producing cells in the pancreas.

Recognizing early signs of high blood sugar is vital, as timely detection may help prevent complications and reduce the risk of additional health concerns.

Persistent Thirst

When blood sugar is too high, the kidneys struggle to reabsorb all the excess glucose. This triggers increased urination, which pulls water from the body and leads to excessive thirst, as the system attempts to restore fluid balance.

Increased Appetite

High blood sugar levels interfere with how the body converts food into energy. Since glucose cannot enter the cells efficiently and stays in the bloodstream instead, the brain misreads the situation as an energy shortage, prompting an increase in hunger.

Small Skin Bumps

People with elevated blood sugar often show higher levels of triglycerides, a type of fat in the bloodstream. This can result in small, raised bumps on the skin, a condition known as eruptive xanthomatosis.

Ongoing Fatigue

When insulin is lacking or ineffective, glucose from food doesn’t enter cells properly. As a result, the body can’t generate energy efficiently, leaving you feeling drained and persistently tired.

Headaches and Blurred Vision

High blood glucose can cause fluid to build up behind the eyes, leading to swelling that distorts vision and makes focusing difficult. This pressure may also trigger headaches, which can impact daily life and reduce concentration.

Tingling or Numbness in Limbs

Prolonged exposure to elevated blood sugar can damage nerves, particularly in the extremities. This may lead to sensations of tingling, numbness, or even pain—most commonly in the hands and feet.

Skin Tags

These small, harmless growths can appear on various areas of the body, especially around the neck, eyelids, groin, and underarms. One potential cause of skin tags is high blood sugar levels.