You may have symptoms of low blood sugar when your blood sugar has dropped below 4.0 millimoles per litre (mmol/L).
When you have had diabetes for many years, you may not always develop symptoms of mild low blood sugar.
Some young children with diabetes cannot recognize symptoms of low blood sugar. Others can, but not every time. To be safe, the parents need to do a home blood sugar test whenever they suspect low blood sugar in a child.
Symptoms may include:
These symptoms may go away shortly after you eat food that contains sugar.
If your blood sugar continues to drop, your behaviour may change. Symptoms may include:
Symptoms of severe low blood sugar (usually below 2.8 mmol/L) include:
If your blood sugar drops while you are sleeping, your partner or other family members may notice that you are sweating and behaving differently. Signs of low blood sugar at night (nocturnal hypoglycemia) include:
You may wake up with a headache in the morning if your blood sugar was low during the night.
Other Works Consulted
- Canadian Diabetes Association Clinical Practice Guidelines Expert Committee (2013). Canadian Diabetes Association 2013 clinical practice guidelines for the prevention and management of diabetes in Canada. Canadian Journal of Diabetes, 37(Suppl 1). Also available online: http://guidelines.diabetes.ca.
|Primary Medical Reviewer||E. Gregory Thompson, MD - Internal Medicine|
|Specialist Medical Reviewer||Jennifer Hone, MD - Endocrinology, Diabetes and Metabolism|
|Last Revised||May 24, 2013|
Last Revised: May 24, 2013
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