This article describes some of the most common nail diseases, their causes, symptoms, and treatments. It also explains when to seek medical care. Nail psoriasis occurs when psoriasis affects your ...

Nail fungal infections are the most common diseases of the nails, making up about 50 percent of nail abnormalities. Fungus is ...

Onychomycosis, or fungal infection of the nail, most often affects the toenails. Infected nails usually have a thick, yellow appearance and can become coarse and brittle (see Figure 4).

your nails can naturally become ridged, dry, brittle, or thick. This is a normal part of the aging process and one of the most common causes of onychorrhexis. Heart and circulatory diseases.

is a common habit. It's usually brought on by stress or even done to seek attention. Bitten nails could be a sign of obsessive-compulsive disorder (OCD) if it's excessive—say, constant biting or ...

If it goes untreated, an ingrown toenail could result in serious health problems. Infected toenails ... from healing quickly. One of the most common self-treatments for ingrown toenails involves ...

Parakeratosis pustulosa (PP) is a cause of distal nail inflammation ... or other skin diseases (Hjorth & Thomsen, 1967). There is no specific treatment for PP. Most cases will improve gradually ...