Do you know all the common sense about genital warts?

　　Genital warts are the most common in European and American countries sexually transmitted diseases First, its incidence rate is increasing year by year. According to incomplete statistics, the incidence of genital warts in the United States has increased fivefold in the past 15 years. Genital warts are also one of the most important sexually transmitted diseases in my country. In some areas, the number of cases accounts for 20% to 31% of all sexually transmitted diseases, ranking second or third. It is more common in the south of my country than in the north, and the most common age is between 16 and 35 years old. Genital warts are highly contagious and have a high incidence rate, ranking third in foreign countries after non-gonococcal urethritis and gonorrhea. The annual growth rate exceeds 100%, ranking first among all types of sexually transmitted diseases. Therefore, some units find 20-30% of female It’s not surprising to have genital warts. This disease can naturally subside within a few months, but there are also a few patients whose lesions persist for many years and cannot be cured. Therefore, it is necessary to detect it early and treat it promptly and thoroughly.

　　Genital warts are sexually transmitted disease One, but different from the way gonorrhea and syphilis are transmitted, in addition to sexual contact, 30-40% are caused by contact with pollutants.

　　The causative agent of this disease is human papillomavirus (HPV). A DNA virus. human body skin The only host of HPV on the stratified squamous epithelium of the mucosa and mucosa has not yet been successfully cultured in vitro. The diameter of virus particles is 50~55nm. This is very small and cannot be seen with a general optical microscope. It can only be seen with an electron microscope. There are many types of human papillomavirus. In recent years, molecular biology technology research has developed rapidly, and it has been confirmed that human papillomavirus has more than 60 antigenic prototypes, that is, there are more than 60 similar but different viruses (subtypes) in this family, at least 10 of which are related to genital warts (such as types 6, 11, 16, 18 and 33, the most common types 6 and 11), and types 11, 16, and 18 are currently studied abroad. cervical cancer , vulvar cancer and even penile cancer are the most popular viral factors, and their long-term infection is related to the occurrence of cervical cancer in women. Genital warts, common warts, flat warts, filiform warts, palmoplantar warts, etc. are all caused by infection with the human papillomavirus (HPV).

　　But different types of HPV can cause different warts. For example, type I mainly causes palmoplantar warts, type II mainly causes common warts, type III mainly causes flat warts, and genital warts are mainly caused by type VI and type XI viral infections. HPV is particularly easy to survive and multiply in warm and humid environments, so the external genitalia of both men and women is the most susceptible site to infection. Viruses can themselves Vaccination , so damage that occurs in parts such as the anus often occurs on the contact surfaces on both sides.