I am diabetic, can i still exercise with blood blister on my foot?

Blood blister: Caution, good arch-supported shoes, and frequent self checks are best. If it does not go away, check with your orthopedic surgeon or podiatrist.

Not a good idea: Since you are a diabetic, you should have your podiatrist check this out first. It may be a simple blister and be ok. However, it may be something much worse like an ulcer or infection. So get it checked out first.