Runners frequently develop blood under the toenails, expecially the second toenail because this toe is usually our longest toe. This condition is called a subungual hematoma.  Often, there is minimal pain in the area, but if the toe and nail are sore, it may be necessary to drain the blood from under the nail or remove the toenail.

Why does this happen?  Friction and pressure over the toenail allow a subungual hematoma to develop.  There are several causes for this condition:  repetitive microtrauma (hitting the end or top of the shoe continually), running downhill, shoes that are too small, rubbing on seams of socks, or toes that are contracted (hammer toes) and grip with running.

If you have this condition, call Dr. Bender for an appointment at Advanced Physical Medicine Oak Park (708-763-0580) or Chicago/63rd (773-776-3166).  She is a foot and ankle specialist who has been in private practice since 2001