<s>[INST] Hi i am a renal dialysis patient and dont pass urine but had a pain in the end of my penis but ignored it then i ejaculated and i had noticed there was some blood clots in my semen. I have not had unprotected sex and to be honest i am worried to what it could be? thanks [/INST] Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Blood in semen may be there due to inflammation in urethra, means urethritis, as you complained of pain in distal urethra. Kindly consult the urologist and go for investigations and and perfect treatment. He might give proper antibiotics as needed. So do not worry, just consult the urologist. I hope I have answered you query. If you have any further questions you can contact us in every time. </s>