Fetal syphilis refers to congenital syphilis, and the treatment includes symptomatic treatment, drug treatment (procaine penicillin G, etc.) and so on. 1. Symptomatic treatment: During pregnancy, if a pregnant woman detects syphilis, she needs the first formal treatment to minimize the probability of fetal infection. For the syphilis baby, need to pay attention to good isolation. 2. medication: if the child is less than two years old, according to the patient’s cerebrospinal fluid normal situation, need to choose intramuscular injection of procaine penicillin G, intravenous drip aqueous penicillin G. If the child is more than two years old, also need to apply penicillin for treatment, but need to increase the course of treatment. If allergic to penicillin, oral erythromycin and ceftriaxone can be taken. Parents are advised to bring their children to the doctor in time, actively cooperate with the doctor’s treatment, and avoid indulgence or indiscriminate use of drugs.