What causes red, itchy bumps on the feet?
Disease description:
Recently, many red bumps have appeared on my feet, and they are very itchy. Why do red bumps appear on the feet and cause itching?
Doctor's answer (1)
Dr. Wang Xiaoyan
Red, itchy bumps on the feet may be caused by various factors, mainly including:
1. Insect bite dermatitis: Often caused by bites from mosquitoes, bedbugs, etc., local symptoms may include redness, swelling, and blisters.
2. Contact dermatitis: Associated with contact with substances such as soap, leather, and metal;表现为边界清楚的红斑，伴有灼热感。
3. Eczema: Caused by the combined effects of genetic, environmental, and psychological factors; characterized by ill-defined red patches, which may have small bumps and blisters, accompanied by severe itching.
4. Tinea pedis (athlete's foot): Caused by infection with dermatophyte fungi;表现为 vesicles, keratosis, and scaly rashes between the toes or on the soles, accompanied by a burning sensation.
5. Prurigo: The cause is not yet clear, but may be related to hypersensitivity reactions;表现为 small, red, hive-like bumps, accompanied by significant itching.
