At present, the eight STDs that we focus on include syphilis, gonorrhea, genitourinary chlamydia (formerly known as non-gonococcal urethritis), condyloma acuminata, genital herpes, AIDS, soft chancre and lymphogranuloma venereum, the latter two of which are extremely rare in China, while condyloma acuminata, syphilis, genital herpes and HIV infection are on the rise, and gonorrhea and non-gonorrhea are significantly less common than they were 10 years ago. The number of gonorrhea and non-gonorrhea has decreased significantly compared to 10 years ago. The lice, vulvar infectious molluscum contagiosum, genital candidiasis, trichomoniasis, ringworm and other sexually transmitted diseases are also more common, and vulvar skin diseases such as psoriasis, various tumors, allergic diseases are not related to sexual intercourse. Since there are so many diseases that can be transmitted through sexual intercourse, what should we pay attention to before seeking medical attention? The first, early diagnosis: STDs have a certain incubation period, as short as 1 day, as long as several months, some of the onset of the diagnosis, some of the infection can be detected, the earlier the diagnosis, the easier the treatment, the simpler, the less damage. For example, the incubation period of condyloma acuminata is 1-8 months. If HPV is detected before the onset of the disease, medication can be administered as early as possible to avoid flesh and blood pain. This is especially true for people with HIV infection. Syphilis patients have an incubation period of 2-4 weeks, so if there is a break in the diagnosis to check and timely treatment, after the end of treatment will not be detected serum antibodies such a lifelong mark, to avoid the embarrassment encountered later in the examination, of course, patients with latent syphilis does not have any signs and symptoms, only in prenatal or pre-surgery accidentally detected, often the disease is longer, delayed treatment, bringing many hidden problems. The same is true for gonorrhea and non-gonorrhea. The shorter the duration of the disease, the faster it will heal and leave no after-effects.