What is hypoglycemia?
Hypoglycemia is when your blood sugar drops too low. Blood sugar is your body's main source of fuel, so low blood sugar causes problems.
Hypoglycemia causes hunger, sweating, shakiness, and weakness, and makes it hard to think clearly
If you have diabetes, you're more likely to get hypoglycemia—it can happen if you take too much medicine, don’t eat enough, or exercise too much
To treat hypoglycemia, eat or drink something with sugar (like juice or candy) to raise your blood sugar level
What causes hypoglycemia?
Most often, hypoglycemia is:
A complication of drugs used to treat diabetes, particularly if you don't eat the right amounts at the right time
If you don't have diabetes, you're not likely to get hypoglycemia. However, sometimes you may get hypoglycemia if you:
Have a tumor in your pancreas
Have severe health problems, such as kidney failure, heart failure, cancer, or shock (a dangerously low drop in blood pressure)
Drink too much alcohol
Have liver problems like cirrhosis
What are the symptoms of hypoglycemia?
At first, you may have these symptoms:
Sweating
Shaking
Feeling lightheaded
Hunger
Later, if you have severe hypoglycemia, you may have these symptoms:
Dizziness
Confusion and trouble concentrating
Slurred speech
Passing out
Sometimes, hypoglycemia makes it seem like you're drunk.
If not treated, severe hypoglycemia can cause seizures, coma, and brain damage.
How can doctors tell if I have hypoglycemia?
Doctors diagnose hypoglycemia based on your blood sugar level while you're actually having symptoms.
How do doctors treat hypoglycemia?
Doctors will tell you to treat your symptoms at home. If you're having symptoms, eat or drink sugar, such as:
Candy
Glucose (sugar) tablets
Sugary drink, such as a glass of fruit juice
Doctors will treat the cause of your hypoglycemia:
If a medicine is causing hypoglycemia, doctors will change the amount you take
If you have a tumor in your pancreas, doctors will do surgery to remove the tumor
If you have diabetes or are otherwise at risk for hypoglycemia, your doctor may suggest you:
Eat small meals throughout the day instead of 3 large meals
Limit the carbohydrates you eat
Carry or wear medical identification to let other doctors know you have diabetes in case of a medical emergency