Studies have shown the early detection of blood sugar symptoms and treatment can decrease the chances of complications. Sugar (glucose) is a source of fuel for the body which enters the blood stream. An organ called the pancreas makes insulin. The role of insulin is to move the glucose from the blood stream to the muscle, fat and liver cells where it can be used as fuel. High blood sugar level can cause several problems and it can be classified as following. Symptoms of type 1 blood sugar are increased thirst, increased urination , weight loss in spite of increased appetite, fatigue, nausea, vomiting. Symptoms of type 2 blood sugar are increased thirst, increased urination, increased appetite, fatigue, blurred vision, slow-healing infections & impotence in men.