The burning sensation is not the sign of syphilis. The fist sign of syphilis is the appearance of a painless lesion on the contact site after 10-90 days of transmission. This lesion is self treated after 4-6 weeks. Then it reappear after 1-6 months of first attack. The burning sensation after urination is usually due to gonorrhea. So visit a doctor for diagnosis and treatment and for more details, visit Syphilis.
