Genital herpes is an STD, which we all know. Many people think that STDs like genital herpes are caused by unclean sex, but in fact, besides unclean sex, there are other reasons to get infected with this disease. The following gives you an introduction to the causes of genital herpes infection. 1, different ways of heterosexual sex, but also can spread genital herpes disease: because the infectious virus can survive in a humid environment for several hours, and thus herpes simplex can also be indirectly transmitted through pollutants. Because genital herpes is also contagious in latency, it can make people unknowingly become herpes transmitters and victims. The source of genital herpes infection is the patient and the person with the virus: especially in the patient’s genital skin or mucous membrane herpes contains the herpes simplex virus, which can be transmitted to the spouse or other sexual partners through sexual contact, and can also be transmitted to each other among homosexuals. Sometimes people who have herpes in or around the mouth can infect each other with genital herpes through oral-genital intercourse. The herpes virus is present in the nerves of the spinal cord during the incubation period: physiologically there are no symptoms, but the virus is already contagious at this time. When the herpes virus attacks, there will be bouts of tingling, burning sensations, skin ulcers and small cuts, and small blisters will grow, and in severe cases the blisters will be watery, making the affected area painful and itchy.