Diabetes is a dangerous health condition, but it can be insidious and go undetected for a long period of time as it damages the body. The nails may provide evidence to prompt a consultation with a physician.
Deep horizontal lines that span the nail are called Beau’s lines. A few different health conditions and injury may cause them. If no injury has occurred and Beau’s lines are present, a physician can investigate the cause. Fungal infections and other nail changes also occur frequently among diabetics and can indicate a need for testing.