The treatment of hypoglycemia unrelated to diabetes includes treating the underlying problem.Among people with diabetes, prevention starts with learning the signs and symptoms of hypoglycemia. Diabetes medications, like insulin, sulfonylureas, and biguanides can also be adjusted or stopped to prevent hypoglycemia. Frequent and routine blood glucose testing is recommended. Some may find continuous glucose monitors with insulin pumps to be helpful in the management of diabetes and prevention of hypoglycemia. Definition
Blood sugar levels naturally fluctuate throughout the day, however hypoglycemia, also called low blood sugar or low blood glucose, is when blood sugar levels drop below 70 mg/dL (3.9 mmol/L).Blood sugar levels are generally maintained between 70 and 110 mg/dL (3.9-6.1 mmol/L). Although 70 mg/dL (3.9 mmol/L) is the lower limit of normal glucose, symptoms of hypoglycemia usually do not occur until 55 mg/dL (3.0 mmol/L) or lower. The blood glucose level at which symptoms of hypoglycemia develop in someone with several prior episodes of hypoglycemia may be even lower. Whipples triad
The symptoms of low blood sugar alone are not specific enough to characterize a hypoglycemic episode. A single blood sugar reading below 70 mg/dL is also not specific enough characterize a hypoglycemic episode.
These individuals are also at far greater risk of severe hypoglycemia.While the exact cause of hypoglycemic unawarenss is still under research, it is thought that these individuals progressively begin to develop fewer adrenergic-type symptoms, resulting in the loss of  neuroglycopenic-type symptoms. Neuroglycopenic symptoms are caused by low glucose in the brain, and can result in tiredness, confusion, difficulty with speech, seizures, and loss of consciousness. Adrenergic symptoms are caused by the bodys reaction to low glucose in the brain, and can result in fast heart rate, sweating, nervousness, and hunger. See section above on Signs and Symptoms for further explanation of neuroglycopenic symptoms and adrenergic symptoms. In terms of epidemiology, hypoglycemic unawarenss occurs in 20-40% of type 1 diabetics. Other causes
Other causes of hypoglycemia in diabetics include the following:

Fasting, whether it be a planned fast or overnight fast, as there is a long period of time without glucose intake
Exercising more than usual as it leads to more use of glucose, especially by the muscles
Drinking alcohol, especially when combined with diabetic medications, as alcohol inhibits glucose production
Kidney disease, as insulin cannot be cleared out of circulation well

Non-diabetics
Serious illness
Serious illness may result in low blood sugar. Severe disease of many organ systems can cause hypoglycemia as a secondary problem. Hypoglycemia is especially common in those in the intensive care unit or those in whom food and drink is withheld as a part of their treatment plan.Sepsis, a common cause of hypoglycemia in serious illness, can lead to hypoglycemia through many ways.