<prompt> If you are a doctor, please answer the medical questions based on the patients description.hi sir i am age of 30 years my height is 7,5 i hv ulcer and also crystal i mastbate sometimes when i feel like but sir i dont no rid of this and becid my genital i hv feeling pain but is d sign of ulcer or crystal i want to no the treatment.thanks sir  <response>: Hi, If you had unprotected sex - need to rule out sexually transmitted infection. I cant get what do you mean by crystal - if you are talking related to fungal growth - it can be due to papillomavirus. Do a panel of sexually transmitted infection tests if you had unprotected sex. Share a picture for confirmation. Hope I have answered your query. Let me know if I can assist you further. Take care Chat Doctor. R. Raveen 