Impetigo in private parts: what to know

Impetigo can begin where skin has been scratched, irritated, or rubbed. Intimate skin may develop small blisters, moist sores, redness, tenderness, or yellow-brown crusts after the surface breaks. The infection can spread by touch, shared towels, close contact, or scratching from one area to another. The location can make ordinary washing and clothing uncomfortable, but it does not change the need for a proper examination. Eczema and other itchy skin conditions can create openings that make infection easier; see [Atopic Dermatitis](/conditions/atopic-dermatitis/) for background on that condition.

A clinician may diagnose impetigo by examining the skin and asking how quickly it changed. Similar-looking irritation can have different causes, so avoid assuming every sore in the genital region is impetigo.

Wash hands before and after touching the area. Clean gently with lukewarm water and mild, fragrance-free cleanser, then pat dry. Do not pick crusts, shave over sores, or squeeze blisters. Wear loose, breathable underwear and keep personal towels, underwear, and washcloths separate until the infection has been assessed. Cover a spot only if a clinician advises it and the dressing will not trap moisture or cause rubbing.

A prescribed cream may be suitable when the affected area is limited; more extensive or spreading infection may need medicine taken by mouth. Use [Topical Antibiotic Therapy](/treatments/medical-dermatology/topical-antibiotic-therapy/) or [Antibiotics For Skin Infection](/treatments/medical-dermatology/antibiotic-therapy-for-skin-infection/) only as directed, and finish the prescribed course unless the prescriber changes it.

Arrange prompt medical assessment for sores on the genitals, especially when the diagnosis is uncertain. Seek urgent help if redness is rapidly expanding, pain is severe, swelling affects urination, fever or marked weakness develops, or the skin becomes dusky or numb. A child, pregnant person, or anyone with reduced immune protection should contact a clinician early. Do not have sexual skin-to-skin contact while open sores or drainage are present.

Crusting can be a useful clue but is not specific; [Crusting Skin](/symptoms/skin-crusting/) explains this symptom more broadly.

Ask whether the appearance fits impetigo or another genital skin problem, whether a swab is needed, which treatment is appropriate for the exact location, and how to protect household or intimate contacts. Tell the clinician about new products, shaving, eczema, allergies, medicines, pregnancy, and any difficulty passing urine.