Itchy crotch may be caused by ringworm, contact dermatitis, pubic lice disease and other diseases.
1. Ringworm: This disease is mainly caused by dermatophyte infection, commonly seen in Trichophyton rubrum, which can be transmitted through direct or indirect contact. Common risk factors include obesity, higher sweating, and low immunity. Ringworm occurs in the groin, and there are local symptoms such as erythema, itching and papules, so some patients will have itchy crotch.
2. Contact dermatitis: this disease is due to the inflammatory skin disease that occurs after the skin comes into contact with certain easily sensitized or irritating substances. If the patient is allergic to the material of underwear or pants, local itching, mild edema and other symptoms, which can be manifested as itchy crotch.
3. Pubic Lice Disease: This disease is due to infection by pubic lice, which is often spread through sexual contact and indirect contact. The main symptom of pubic lice disease is itching, which occurs in the genital area, so the patients will have the phenomenon of itchy crotch.
To summarize, there are many causes of itchy crotch, patients need to go to the hospital, complete a series of related examinations to clarify the cause.