STD phobia is one of the phobias. Fear is a fearfulness that arises in the face of an event that has occurred. Fear is a normal psychological. However, if the fear in the degree or object beyond the normal range, so that people feel emotionally disturbed, and therefore affect the work and life, it is a phobia, STD phobia is afraid of their own STDs and a psychological disorder. STD phobia can be divided into two categories: disease-free self-phobia and post-disease phobia. The patients who have no disease since the phobia, in common parlance, is “self-scared themselves”. These patients originally did not have sexually transmitted diseases, but in the social interaction has been in contact with people suspected of sexually transmitted diseases or unclean environment, or their own, or their spouses have had a history of unclean sexual intercourse, although they have not been infected with sexually transmitted diseases, but always suspected that they have contracted sexually transmitted diseases, or suspected that sex partners will be sexually transmitted diseases, so that they have contracted a sexually transmitted disease, the patients with disease-free phobias are often in an extramarital sex or the first time after the pre-marital sexual intercourse, during the intercourse, found that there is a strange feeling. After an extramarital sex or the first premarital sex, in the process of intercourse, found that there is a strange feeling, or after sexual intercourse, found that the external genitalia in the past have not noticed the rash (actually belongs to the normal range of glans pearl rash or hairy labia minora) and mistakenly thought that the contraction of sexually transmitted diseases, and then check the medical books, journals, and “to the seat”, and everywhere to seek medical treatment. Fear of decoration after the disease, refers to the horror of STDs produced after the psychological, and can be further divided into the “disease horror” and “after the disease is cured horror” two kinds of. Terror in the disease, refers to the horror produced after the STD, so it is also known as the fear of the disease. This is the patient suffered from venereal disease, read some books about venereal disease, or listen to others after the formation of intimidation. Terror after healing. Refers to the STD has been cured, due to some doctors on the results of the examination of the wrong judgment, so that the person mistakenly thought that the disease has not been cured, or due to the horror of psychology, the patient will be cured of some of the uncomfortable symptoms left behind and the abnormal feeling of the STD are blamed on the STD has not been cured of the fear, anxiety, tension mentality. To prevent the occurrence of STD phobia, the individual, first of all, to be clean, eliminate extramarital sex. For the media, not only to popularize sex knowledge, eliminate people’s ignorance and misunderstanding of sexually transmitted diseases, but also to grasp the scale of publicity, but not overly exaggerate the horror of sexually transmitted diseases. It is even more inappropriate to prevent people from engaging in extramarital sex by means of intimidation. For doctors, they should treat patients reasonably with correct sexological views and knowledge, and guide patients to eliminate ignorance and misunderstanding of STDs with a caring and sympathetic attitude. Once a patient has developed a sexual terror, he or she should go to a psychological clinic in a timely manner.