There are many reasons for prepuce edema after sexual life. Doctors will determine the cause of foreskin swelling according to the symptoms and examination results of different patients, and judge what to do with foreskin swelling, but common ones are phimosis, too long foreskin or masturbation too fast. As we all know, the skin of male penis is very thin, and the skin of penis head is folded inward into double layers, covering the penis, which is called foreskin. The skin and subcutaneous tissue in the foreskin are slack and rich in blood vessels and lymphatic vessels, which belong to the peripheral part of systemic circulation. Therefore, the speed of blood and lymph reflux is relatively slow, which is the part that is easy to form edema. In the process of sexual life, with the progress of sexual intercourse, the foreskin is constantly impacted by the upward force, especially when phimosis or foreskin is too long. In this way, the penis skin is stimulated by intense friction, which leads to poor venous return, edema, and even incarcerated phimosis in severe cases, which needs to be reset in time to avoid necrosis. Experts pointed out that when the foreskin is too long or phimosis, the penis head is easy to hide evil and accept evil, and the latter forms scale together with the secretion of glands on the inner surface of the foreskin. The accumulation of scale can lead to dermatitis or vaginitis. Over time, inflammation will shrink the foreskin mouth and form adhesion with the penis, and then acquired phimosis will occur. After suffering from inflammatory adhesion, the probability of foreskin edema after sexual life is greater. & gt& gt& gt For more questions, please consult online experts >>& gt Harbin Modern Male Hospital's five high-quality services: ★ Hospital without holidays ★: Our hospital accepts patients as usual on holidays. ★ free online consultation with doctors ★: andrology experts help you analyze your condition online, which is more authoritative and private. ★ Online appointment of expert number ★: Make an appointment for expert clinic directly, and enjoy free registration fee. ★ Network remote consultation ★: With the help of advanced network remote consultation system, make the best treatment plan for patients, enjoy authoritative medical resources ★ lead the international minimally invasive technology ★: set up a "minimally invasive surgery center", which is safer, minimally invasive, faster to recover and more satisfied with patients.