What causes itching after sexual intercourse?

      Many women experience itching after sexual intercourse, and there are many reasons for this. Excluding gynecological diseases, the itching may be due to semen allergy or female diseases. Women should pay attention to personal hygiene and keep themselves dry and clean after sexual intercourse to maintain their private health.

      Why does the genital area itch after sexual intercourse?

      Allergic reaction to condoms (or topical contraceptives): Condoms are made of chemical substances, and a few people may have an allergic reaction to them. Women may experience external genital itching, vulvar and vaginal wall congestion and erosion, and increased secretions from the external genitalia and vagina.

      Men may experience unbearable itching of the penis hair, leading to local pain, or even penile head congestion, edema, and erosion. In addition, some drugs (such as topical contraceptive gel and film) may also cause allergic reactions.

      Semen allergy: Semen itself is an allergen for men. If the wife is allergic, it is easy to have an allergic reaction. The main symptoms are external genital itching, and sometimes the main symptom is external genital congestion. A few people will have chest tightness, palpitations, or systemic rash.

      Allergy to vaginal discharge: Vaginal discharge is composed of cervical fluid, infiltrating part of the endometrium, shed cells from the fallopian tube, and vaginal secretions. During sexual intercourse, cervical fluid and vaginal secretions increase, causing an increase in vaginal discharge. Many antigenic substances in vaginal discharge can cause allergies. If the husband is allergic, it can also cause an allergic reaction. The main manifestations are itching and discomfort in the penis, penis body, or scrotum. Swelling of the external genitalia or “wind rash obstruction” is rare.

      Irritation caused by contaminated secretions: During sexual intercourse, secretions from the genitalia (such as vaginal discharge, semen, menstrual blood, foreskin smegma, etc.) are colored on the external genitalia, and then dry and adhere to the local skin and mucous membranes, causing irritation, itching, and discomfort.