You feel the burn
UM UMM/Shutterstock A semen allergy can show up immediately after your partner ejaculates, and you might have burning, redness, swelling, and blisters in your vagina, says Sherry A. Ross, MD, author of she-ology and expert on the MedAnswers platform. A semen allergy isn’t the only culprit with those types of symptoms though, so talk to your doctor before jumping to conclusions. Seminal plasma hypersensitivity only affects an estimated 20,000 to 40,000 women, so the doctor will need to rule out other allergies, such as reactions to condoms, spermicide, or scented tampons, plus STIs before considering a semen allergy, says Dr. Ross. For more culprits, check out these 11 surprising reasons for painful sex.
You’re getting itchy
With an itchy vagina, your first thought would probably be a yeast infection, and that is a good place to start—after all, an estimated 75 percent of women will get at least one yeast infection in her life, making it far more common than a semen allergy. But if you don’t have that telltale cottage cheese-like discharge and the itching only shows up after sex, ask your doctor about a semen allergy, suggests Peter Rizk, MD, fertility expert for Fairhaven Health. Don’t miss these nine tips for preventing yeast infections.