User blog comment:Acebatonfan/The "D-word"/@comment-4364807-20140311040258/@comment-4196050-20140311203956

Yes, it is true. Slow wound healing is a very common side effect of diabetes, though the severity increases when the blood glucose is above a certain range for an extended amount of time (typically an A1C result of 7+).

There is a bit of a nasty combination with diabetes complications. Neuropathy can cause loss of feeling in the feet, which can cause the person to not feel when, for example, there is a nail in their shoe. This will very likely cause some sort of wound on the foot, and, with the slow wound healing typical for diabetics, can lead to infections and, if severe enough, amputation.