Itching of the external genitalia the day after intercourse

Itching of the external genitalia the day after sexual intercourse may be caused by irritation from secretions, excessive friction, allergic reactions, vaginitis, or vulvitis. Appropriate measures can be taken depending on the specific cause. It is recommended to seek timely medical attention and receive treatment under the guidance of a doctor.

1. Secretion irritation: During sexual activity, substances such as semen and vaginal discharge are secreted. If not cleaned promptly, these secretions may irritate the skin of the external genital area, causing itching. After intercourse, wash the external genital area with warm water, keep it clean and dry, change underwear frequently, and choose cotton, breathable undergarments.

2. Excessive friction: Overly vigorous movements or prolonged intercourse may lead to excessive friction on the skin of the external genitalia, resulting in local skin damage and itching. Be gentle during intercourse to avoid excessive friction. If itching has already occurred, apply a cold compress using an ice towel or cooling pad to relieve discomfort.

3. Allergic reaction: Allergy to items used during intercourse—such as condoms, semen, or vaginal lubricants—may cause itching of the external genitalia. Discontinue use of any suspected allergenic products and rinse the genital area with clean water. If symptoms are severe, take antiallergic medications such as cetirizine hydrochloride tablets, loratadine tablets, or ephedrine diphenhydramine tablets under medical supervision.

4. Vaginitis: Vaginitis may be related to poor hygiene habits or infections. Sexual intercourse may worsen the inflammation, increase vaginal discharge, and irritate the external genital skin, leading to itching. Under a doctor’s guidance, patients may use medications such as metronidazole suppositories, tinidazole suppositories, or nystatin suppositories to alleviate symptoms.

5. Vulvitis: The skin of the vulva may become infected with bacteria, fungi, or other pathogens, or may be irritated by urine or feces, leading to vulvitis and resulting in itching. Follow medical advice to use medications such as Fufang Huangsong Wash, nitrofurazone tablets (nifuratel), or Keyangshu Wash to improve symptoms.

In daily life, maintain healthy living habits, ensure adequate sleep, avoid staying up late, and strive to stay in a positive mood, avoiding anxiety, irritability, and other negative emotions, all of which contribute to overall health.