Syphilis may be contagious. 1, sexual contact, which is the main route of infection. 2, blood-borne syphilis patients, latent syphilis and latent syphilis serum is contagious, through blood transfusion and needle can infect others. 3, fetal transmission, pregnant women with syphilis can infect the fetus through the placenta, 4, a few can be infected through ways other than sexual contact, such as kissing and breastfeeding; Contact with the daily necessities of patients with infectious injuries, such as clothes, towels, razors, tableware, cigarette holders, etc. It is also contagious. Be careful at ordinary times Please adopt