What is an ingrown nail scientifically referred to as?

An ingrown nail is scientifically referred to as onychocryptosis. This condition occurs when the edges or corners of a nail grow into the surrounding skin, leading to pain, swelling, and potential infection. Onychocryptosis is commonly seen in toenails, especially when the nails are improperly trimmed, tight footwear is worn, or the individual's toenails have a naturally curved shape.

The term 'onychomycosis' refers to a fungal infection of the nail; 'onychophagy' describes the habit of nail-biting; and 'nail pterygium' refers to the abnormal growth of skin over the nail plate. Each of these terms describes different nail-related conditions, but none accurately define the specific situation of an ingrown nail like onychocryptosis does.