Medically reviewed by Susan Bard, MD Key Takeaways Beau's lines are horizontal ridges across nails caused by interrupted nail ...

Toenail fungus can cause a thickening of the toenail, as well as other changes in appearance. This can lead to pain and discomfort and should be treated promptly to prevent further issues. Changes in ...

Subungual onychomycosis is the most common type of toenail fungus and affects the nail bed and underside of the nail. White superficial onychomycosis causes white spots and flaky patches on the ...

An ingrown toenail occurs when the top corner or side of your toenail grows into the flesh next to it. It happens most commonly on your big toe. Common causes of ingrown toenails include: wearing ...

Toenail discoloration is a common issue. Possible causes of discolored toenails range from minor toe injuries and fungal infections to more severe health conditions, such as melanoma. Toenails are ...

Toenail fungus can cause nail deformity, including yellow or thick nails. Oral anti-fungal medications like Lamisil are the most effective treatment for toenail fungus. Keeping your feet clean and ...

If a toenail is already ingrown, a person should avoid cutting it at home, as this can make it worse or cause infections. However, healthcare professionals can help remove an ingrown toenail. It may ...

Ingrown toenails in babies and children are painful and common. The corner of a toenail, usually the great toe, gets stuck in the cuticle of the nail bed. Your baby may be fussy or your child will ...