High blood glucose, also known as hyperglycemia, can cause major health complications in people with diabetes. Several factors can contribute to hyperglycemia—including poor food and physical activity choices, illness or disease, or not getting the right dosage of glucose-lowering medication.
Regular blood sugar testing is helpful for people with diabetes, because many people do not feel symptoms of high blood sugar.
By the way, a symptom is any subjective evidence of disease, while a sign is any objective evidence of disease. Therefore, a symptom is a phenomenon that is experienced by the individual affected by the disease, while a sign is a phenomenon that can be detected by someone other than the individual affected by the disease. For examples, anxiety, pain, and fatigue are all symptoms. In contrast, a bloody nose is a sign of injured blood vessels in the nose that can be detected by a doctor, a nurse, or another observer.
Short-term symptoms of high blood sugar include:
- excessive thirst
- excessive urination
- increased urination at night
- blurry vision
- sores that won’t heal
If you experience symptoms of hyperglycemia, it’s important that you check your blood glucose levels. Untreated high blood sugar can lead to acute complications, such as diabetic ketoacidosis, and chronic complications, such as eye, kidney, or heart disease and/or nerve damage.