![]() The treatment needed for a genital rash depends on the underlying cause. If you do use a home diagnostic test and get a positive result, have a doctor double-check the results and get treated as soon as possible. There are home diagnostic tests you can use to test for STIs, though they may not be as reliable as tests run by a doctor. Some causes of genital rashes, such as herpes and syphilis, may be detected through blood work. The findings can potentially be used to diagnose conditions such as psoriasis, scabies, and fungal infections. The tissue from the scrape or biopsy is examined under a microscope. The doctor may order a skin scrape or biopsy, where they scrape or remove part of a wart, part of a lesion, or skin cells. Swab testingĭoctors may swab vaginal discharge and any discharge present around the penis, along with lesions. For example, they may study the webs of your fingers to look for scabies. They’ll also examine other areas of the skin that may be affected. Let them know about any unusual redness or discharge. The doctor will look at the features of the rash, including any lesions or warts. The diagnosis process can involve some or all of the following: A physical examination You can connect to a primary care doctor in your area using the Healthline FindCare tool. The rash isn’t necessarily itchy.īefore treating a genital rash, a doctor first needs to determine its cause. It produces a rash that can be anywhere on the body. ![]()
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