Fingernails are made of a protein called keratin. Fingernail ridges are common and often harmless, but sometimes they are a sign of an underlying condition. Ridges can also appear ...

You can tell a lot by looking at someone's fingernails. If their fingernails (or yours) exhibit these telltale signs, it can be a warning about your health. Fingernails on display ...

According to Dr. Standley, flat nails may indicate Raynaud's disease, a condition that most commonly affects women ages 18 through 30. Other changes in nai According to Dr. Standle...

Fingernail Problems - Fingernail problems are common and often signal greater health problems. Visit HowStuffWorks to learn all about fingernail problems. Advertisement Your finger...

Brittle bone disease, or osteogenesis imperfecta, is a lifelong and potentially life-threatening disorder that makes bones break very easily. WebMD explains the causes, symptoms, a...

Dents can occur in fingernails due to underlying medical conditions, such as psoriasis, Reiter syndrome, incontinentia pigmenti and alopecia areata, accord Dents can occur in finge...

Fingernails can grow downward as a result of a condition called nail clubbing in which the fingers grow larger, while the nails grow around and curve over Fingernails can grow down...

Fingernails can reveal many things about a person's health. One of the most common changes they undergo is the development of ridges. Many people worry about these ridges, but they...

Learn about the common causes of loose nails, why it happens, how to treat the nail, and whether or not it will grow back. Rochelle Collins, DO, is board-certified in family medici...

A 10-year-old boy with a 2-year history of intermittent alopecia on the posterior scalp presented with densely distributed pitting of all of his fingernails. Although the patient’s...