Fungal nail infection, known as onychomycosis, often goes unnoticed as it can persist for years without causing discomfort. This condition is characterized by a gradual alteration in the appearance and color of a toenail, which can be aesthetically unpleasing and socially awkward. Essentially, this ailment involves an infection that develops beneath the nail's surface due to fungal activity. As these tiny organisms take hold, the nail often becomes discolored and emits an unpleasant odor. Debris can accumulate beneath the nail, white marks may appear on the nail plate, and the infection can potentially spread to other toenails, the skin, or even fingernails.

If this issue is disregarded, the infection has the potential to expand, potentially hindering one's ability to work or walk comfortably. This is because the resulting thicker nails become difficult to trim and can cause discomfort while wearing shoes. Additionally, onychomycosis might coincide with a secondary bacterial or yeast infection around or within the nail plate. Given the challenge of avoiding contact with microscopic organisms like fungi, toenails are especially susceptible in damp environments where people commonly walk barefoot, such as swimming pools, locker rooms, and showers. Injuries to the nail bed can increase vulnerability to various infections, including fungal infections. Individuals with chronic conditions like diabetes, circulatory issues, or immune deficiencies are particularly prone to developing fungal nail infections. Contributing factors might also include a history of athlete's foot and excessive sweating.