The ancient name for sexually transmitted diseases (STDs), which is now known as syphilis, is “philoderma”, a term used in ancient times. For syphilis, if you want to know its symptoms, you can make a comprehensive analysis, including syphilis I, syphilis II, syphilis III. 1, syphilis I is mainly manifested as the appearance of cartilaginous ulcers on the external genitalia without pain, if not treated, about 1 month to subside, and then enter the asymptomatic incubation period, maintained for about 1 month, the emergence of syphilis rash 2, syphilis rash, mainly manifested as the appearance of red papules all over the body, no pain, no itching, sometimes the palms and feet of the syphilis, the main manifestation of syphilis rash. Red macules appear all over the body, no pain, no itch, sometimes there will be copper-red patches on the palms of the hands and feet metatarsal areas, if continue to let it develop, it may maintain 2-3 months to subside again, enter a long latent period, and then found when it has been the third stage of syphilis. 3, the symptoms of the third stage of syphilis is a lot of, it can be involved in a variety of internal organs damage, resulting in organ dysfunction.