High blood sugar, also known as hyperglycaemia, can affect different parts of the body, especially when it remains uncontrolled for a long time. Although high blood sugar does not always cause pain, it can damage nerves and blood vessels, leading to discomfort in certain areas. Here are five parts of the body that may be affected.
1. Your Feet
High blood sugar over time can damage the nerves in your feet, causing burning, tingling, numbness, or sharp pains. This condition is known as diabetic neuropathy. Some people lose sensation instead of experiencing pain, making it important to check your feet regularly if you have diabetes.
2. Your Legs
Some people with diabetes experience leg cramps, aching, or pain when walking. Long-term high blood sugar can damage blood vessels and reduce circulation to the legs. However, leg pain has many possible causes, so persistent symptoms should be assessed by a healthcare professional.
3. Your Hands And Fingers
Nerve damage associated with diabetes can cause tingling, burning, numbness, or pain in the hands and fingers. These symptoms may develop gradually, particularly when blood sugar remains poorly controlled for an extended period. Other conditions, including nerve compression, can cause similar symptoms.
4. Your Eyes And Head
High blood sugar can temporarily change the shape of the eye’s lens, causing blurred vision. Some people may also experience headaches when their blood sugar is very high or when they are dehydrated. However, headaches alone are not a reliable sign of diabetes, and sudden changes in vision need prompt medical attention.
5. Your Stomach
Very high blood sugar over time can damage the nerves that control how quickly food leaves the stomach. This condition, called diabetic gastroparesis, may cause abdominal discomfort, bloating, nausea, vomiting, or feeling full after eating only a small amount. These symptoms can also result from many other digestive conditions.
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