According to WebMD, a nail fungus develops when a microscopic fungus enters into the nail, and if the fungus causes an infection, the nail thickens and becomes discolored. Nail fungus infections are more likely to develo... More »

The fungus that commonly grows under toenails is called onychomycosis and tinea unguium, according to Mayo Clinic. The fungus appears as white or yellow spots under fingernails or toenails. More » Health Conditions & Diseases Skin Conditions

Treatment for thick, yellowish toenails varies based on the underlying cause but may include topical and oral anti-fungal medications, laser treatment and surgical removal of the nail in extreme cases, according to Foot ... More »

Toenail fungus can be treated with antifungal drugs that are taken orally or with medicated nail creams or nail polishes, according to Mayo Clinic. There are fungus remedies available both over the counter and by prescri... More »

There are a number of different treatments for nail fungus that can be effective, depending on the type of fungus and the severity of the infection. For mild to moderate infections, over-the-counter anti-fungal creams an... More » Beauty & Fashion Nail Care

Remove a loose toenail by trimming it off and treating it to prevent infection. You need a nail clipper, scissors, a nail file, an adhesive bandage, salt, water and an antibiotic ointment. Removing the nail takes less th... More »

Brands that make toenail cutters for thick toenails include Trim, Tweezerman and MEHAZ. The Trim Nail Care Toenail Nipper features metal construction, wider-opening jaws and precision ground blades in a balanced nipper f... More » Beauty & Fashion Nail Care