
Nail fungus, also called onychomycosis, is a common condition estimated to affect up to 10% of the population worldwide. It can cause nails to become yellow or discolored. As the infection advances the nail can become thick, brittle and separate from the nail bed. It can also cause pain when wearing shoes or walking. This article provides information about the causes of nail infections and available treatment options. The benefits, disadvantages and risk of each treatment is discussed. You should discuss your medical condition and treatment with your doctor.