What causes warts on the feet, and how should they be treated?
Sep 30, 2024
Source: Cainiu Health
Dr. Liu Wenmin
Introduction
In general, warts appearing on the feet are medically known as plantar warts, which are benign skin growths on the sole caused by human papillomavirus (HPV) infection. Plantar warts may be triggered by factors such as decreased immunity, excessive foot sweating, local friction and pressure, athlete's foot, or flat warts. Treatment options include conservative management and medication. If discomfort occurs, it is recommended to seek medical attention promptly.
Warts on the foot generally refer to plantar warts, which may be caused by factors such as decreased immunity, excessive sweating of the feet, local friction and pressure, athlete's foot (tinea pedis), or flat warts. Treatment options include general management and medication. If discomfort occurs, timely medical consultation is recommended. Specific analysis is as follows:
1. Decreased Immunity
When the body's immune system is weakened, it becomes less effective at resisting invasion by the human papillomavirus (HPV), making infection more likely and leading to the development of plantar warts. It is important to maintain a balanced diet, consume foods rich in vitamins and minerals, and engage in moderate physical exercise to strengthen the immune system.
2. Excessive Sweating of the Feet
Excessive foot sweat creates a favorable environment for the replication of human papillomavirus. The virus thrives and spreads more easily in high-moisture conditions, thereby increasing the risk of developing plantar warts. It is recommended to wash the feet daily with warm water and a mild cleanser, then thoroughly dry them with a clean towel.
3. Local Friction and Pressure
Frequent pressure and friction on the feet can cause thickening of the skin's keratin layer, resulting in tiny breaks or cracks that provide an entry point for HPV, facilitating the development of plantar warts. It is advisable to wear well-fitting shoes and avoid prolonged walking or standing to reduce friction and pressure on the feet.
4. Athlete's Foot (Tinea Pedis)
Athlete’s foot is associated with fungal infections, which can compromise the skin’s protective barrier and increase susceptibility to plantar warts. It may be accompanied by symptoms such as foot ulcers, secondary infections, or gangrene. Patients should follow medical advice and use antifungal medications such as miconazole nitrate cream, econazole nitrate spray, or amorolfine hydrochloride solution.
5. Flat Warts
Infection of the epidermal cells on the sole by human papillomavirus leads to abnormal cell differentiation and proliferation, resulting in plantar warts, which may be accompanied by pain. Under medical supervision, treatments may include cantharidin cream, fluorouracil cream, or podophyllotoxin ointment.
In daily life, it is important to keep the feet clean and dry, maintain a balanced diet to boost immunity, and wear appropriate footwear to minimize friction.
