When is it necessary to call a doctor if you have diabetes?

Call a healthcare provider in the following situations:

  • If you have diabetes and your blood sugar is 300 mg/dL or more 2 times in a row for an unknown reason.
  • If you have a low blood sugar (less than 70 mg/dL) that has not come up after 3 treatments, call your healthcare provider or 911.
  • If you see a person with diabetes who appears confused, they may be having a low blood sugar episode. Left untreated, the low blood sugar could lead to a diabetic coma. If the person is still able to follow instructions, give him or her something to drink or eat and call authorities for medical attention.
  • If you see someone with diabetes become unresponsive, call 911.

Last reviewed by a Cleveland Clinic medical professional on 10/04/2017.


Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy