Which fungal infection is commonly associated with nails?

Onychomycosis is the correct response as it specifically refers to a fungal infection that affects the nails. This infection can cause a variety of changes to the nails, including discoloration, thickening, and eventual destruction of the nail structure. It is caused by dermatophytes, yeast, or non-dermatophyte molds that invade the nail bed, often leading to significant discomfort and aesthetic concerns for those affected.

Understanding this condition is crucial for nail technicians as they may encounter clients with onychomycosis, and recognizing it can allow for appropriate recommendations or referrals for treatment. While other choices like athlete's foot, ringworm, and candidiasis are also fungal infections, they do not specifically pertain to nail infections. Athlete's foot typically affects the skin of the feet, ringworm refers to a skin infection that can occur anywhere on the body, and candidiasis primarily involves mucous membranes and skin rather than the nails. Thus, onychomycosis stands out as the specific condition related to nails.