Definition: Excessive lateral nail growth into the nail fold. Because the lateral margin of the nail acts as a foreign body, inflammation and granulation may result. It is caused by improperly fitting shoes and by improper trimming of the nail.
Synonyms (terms occurring on more labels are shown first): ingrown toenails, ingrown toenail, ingrowing nail
More information: PubMed search and possibly Wikipedia
Drugs with this side effect