What are the complications of syphilis?

Late or long-term syphilis can cause a variety of complications, such as syphilitic cardiovascular disease can lead to aortic valve insufficiency, aortic aneurysm, induced acute myocardial infarction, neurosyphilis is also a relatively common complication can cause hemiplegia, aphasia, hearing loss, blurred vision, etc., and syphilitic osteitis can cause fractures.