What causes smelly toenails?

Generally, smelly toenails may be caused by poor hygiene habits, prolonged exposure to damp environments, athlete's foot, nail fungus, paronychia, and other conditions. Symptomatic treatment such as general care and medication may be needed. If discomfort occurs, it is recommended to seek medical diagnosis and treatment promptly. The detailed analysis is as follows:

1. Poor Hygiene Habits

If foot cleanliness is neglected and feet and socks are not washed regularly, dirt may accumulate under the toenails, promoting bacterial growth, which can cause smelly toenails. It is recommended to improve daily hygiene habits, regularly wash the feet with antibacterial soap, especially the toenails, and keep the feet dry.

2. Prolonged Exposure to Damp Environments

Remaining in damp conditions for extended periods, such as not changing shoes and socks promptly after swimming or exercising, can easily lead to bacterial and fungal growth around the toenails, causing odor. This may be accompanied by symptoms such as moist and whitish skin on the feet. It is recommended to keep the feet dry, promptly change shoes and socks after exercise, and maintain foot cleanliness.

3. Athlete's Foot

Athlete's foot is a common skin condition caused by fungal infection, often affecting the toenails and surrounding skin. It causes thickening, deformation, and yellowing of the toenails, accompanied by a foul odor. Symptoms may also include redness, itching, and peeling of the skin around the toenails. It is recommended to use medications such as Amorolfine Hydrochloride Cream, Luliconazole Cream, and Itraconazole Capsules as directed by a physician to alleviate symptoms.

4. Nail Fungus (Onychomycosis)

Nail fungus is a fungal infection that damages the toenail plate, making it easier for bacteria to invade and multiply, resulting in a foul odor. Symptoms may also include toenail deformation, thickening, discoloration, and possible itching or pain. It is recommended to use medications such as Ciclopirox Cream, Terbinafine Hydrochloride Cream, and Terbinafine Hydrochloride Tablets under a doctor's guidance.

5. Paronychia

Paronychia refers to inflammation caused by toenails growing inward at the edges, piercing into the surrounding skin, leading to infection. The infected area may discharge pus and emit an unpleasant odor. Symptoms of paronychia may include redness, swelling, pain, and abscesses in the skin around the toenail. It is recommended to use medications such as Fusidic Acid Cream, Miconazole Nitrate Cream, and Minocycline Hydrochloride Capsules as directed by a physician to relieve symptoms.

It is also recommended to trim toenails regularly in daily life and avoid letting them grow too long to prevent dirt from accumulating underneath the nails.