What could be causing itchy skin under my scrotum and anus?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Itchy skin under the scrotum and anus is a common issue often caused by fungal infections (like jock itch), skin conditions such as eczema or contact dermatitis, poor hygiene, excessive sweating, or bacterial infections. Treatment typically includes antifungal creams, hydrocortisone ointments, or antimicrobial washes, along with keeping the area clean and dry.

Because itching in this area can stem from many overlapping causes—some requiring specific prescription treatment—identifying the root cause is key to fast relief. Take a free, instant, AI-powered symptom check to better understand what's behind your discomfort and get clear guidance on your next steps.

Reviewed for medical accuracy: 07/15/2026

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Explanation

Itchy skin in the area under the scrotum and anus, known as anogenital pruritus, can have different causes. One possible reason is a skin condition related to the lumbosacral area, which is the lower back and spine (Reference 1). This means that issues in the back could cause itching in this region.

To help with the itchiness, using a special ointment like 0.1% tacrolimus may be effective (Reference 2). This ointment can reduce the feeling of itchiness and provide relief.

Additionally, using antimicrobial solutions like chlorhexidine can help reduce bacteria in the groin area, which might also help with itchiness (Reference 3).

If you are experiencing these symptoms, you can check your symptoms with our free AI-powered tool or talk to a healthcare professional for guidance and appropriate treatment.

(References)

Cohen AD, Vander T, Medvendovsky E, Biton A, Naimer S, Shalev R, & Vardy DA. (2005). anogenital pruritus is a symptom of lumbosacral .... Journal of the American Academy of Dermatology, 15627082.
Tan GF, Tan ES, & Tey HL. (2014). effective treatment of pruritus with 0.1% tacrolimus ointment. Dermatologic therapy, 24703270.
Vorherr H, Ulrich JA, Messer RH, & Hurwitz EB. (1980). Antimicrobial effect of chlorhexidine on bacteria of groin, .... The Journal of reproductive medicine, 7373599.

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