What causes itching in the groin area in men?

Itch in the male groin area may be caused by factors such as poor local ventilation, eczema, tinea cruris (jock itch), folliculitis, or contact dermatitis. It is recommended to seek medical attention promptly, identify the underlying cause, and receive symptomatic treatment under the guidance of a qualified physician. Specific analyses are as follows:

1. Poor Local Ventilation

The groin area contains abundant sweat glands. Wearing tight-fitting or non-breathable underwear may impair local air circulation, causing sweat to accumulate and fail to evaporate easily. This can irritate the skin and lead to itching. It is advisable to wear loose, breathable cotton underwear and change it frequently to help alleviate discomfort.

2. Eczema

The skin in the groin area is particularly sensitive and prone to irritation from external factors that may trigger eczema. Symptoms of eczema may include papules, redness, swelling, and itching. Men should follow medical advice and use medications such as zinc oxide ointment, calamine lotion, or acetic acid prednisolone cream for treatment.

3. Tinea Cruris (Jock Itch)

This is a fungal skin infection commonly occurring in the sweaty groin area. Poor hygiene may promote fungal growth, leading to tinea cruris characterized by papules, blisters, itching, and flaking. Men should follow medical instructions to use antifungal medications such as amorolfine hydrochloride cream, luliconazole cream, or itraconazole capsules.

4. Folliculitis

Folliculitis may be associated with inadequate skin hygiene or parasitic infections. It can cause moisture and itching in the groin area, along with small red rashes and white pustules. Men should use medications such as fusidic acid cream, compound polymyxin B ointment, or cephalexin capsules under a doctor's guidance to improve symptoms.

5. Contact Dermatitis

If the skin in the groin comes into contact with certain allergens—such as animal fur, dust mites, etc.—it may trigger contact dermatitis, resulting in localized itching and swelling. Men should strictly follow medical advice and apply medications such as desonide cream, hydrocortisone cream, or compound betamethasone and camphor cream to relieve symptoms.

In daily life, men are advised to maintain good hygiene in the groin area, avoid prolonged sitting, refrain from scratching affected areas, and consume fresh fruits and vegetables such as apples, grapes, and cucumbers appropriately, which may benefit recovery.