Abnormal Pronation Can Exacerbate Ingrown Toenails: MD Podiatrist

You may be more likely to develop ingrown toenails if your shoes are too short or too tight, which causes repeated trauma to the toe as you walk, says Daniel Michaels, DPM. If the excess pressure goes on too long, such as during a long hike or charity walk, bleeding could occur under the nail and-your toenail might eventually fall off.
 
“People who overpronate when they walk can exacerbate existing problems in the big toes,” says Dr. Michaels, who suggests using inserts to reduce pronation (walking on the insides of your feet). If you have diabetes or any circulatory disorder, have your ingrown toenails treated by a podiatrist.