Tertiary syphilis belongs to the latest stage of syphilis. If a patient develops tertiary syphilis, their symptoms are generally very severe, mainly involving the skin, cardiovascular system, musculoskeletal system, and even the nervous system. In particular, when the nervous system is involved, symptoms such as drowsiness and confusion may occur. Cardiovascular involvement can lead to related cardiovascular symptoms, and if the musculoskeletal system is affected, symptoms generally appear in the bones.