Ulcer on penis. Of it being syphilis?

Thank you for your question. Any painless ulcer on the genitals is treated as suspicious of syphilis unless proved otherwise. This is because it is easy to diagnose and treat but the consequences of not doing so are so disastrous long term. I would urge you to see a doctor specialising in skin and DVD as soon as you can, preferably before the ulcer heals as this is the best opportunity to pick up direct proof of the organism causing it. If not you may be able to get a blood test. Most likely you and your partner need testing for the full range of sexually transmitted infections as they all travel together. Your doctor will give you the necessary treatment and advice regarding follow up too. please don't delay seeing your doctor. best wishes