### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi, I am a 25 year old male and I ve had a pretty bad, constant irritation of my urethra for as long as I can remember. It is usually much worse after urinating but still nearly a constant problem. I ve noticed that the only thing that gives me relief is if I constantly drink water, keep my bladder full and wait until I m about to burst before urinating. I constantly feel like I have to urinate but I feel as if the urine is stuck inside my actual penis instead of my bladder unless I do what I just described. I was blood tested for gonorrhea and chlamydia, both negative. I had a prostate exam whicChatDoctore back as normal. The doctor gave me a prescription of Doxycycline to no avail. For the past couple of months I started to notice a very slight, clear discharge while looking into my urethra and it s still there. Nothing has changed and for about a week now I seem to have a little bit yellow discharge protruding from my penis but only in the morning. I went to a primary care physician and he seemed to think it may be trichomoniasis and I just started taking 1/2 of a 500 mg tablet, 3 times daily for 8 days. If this medicine doesn t cure me I may go insane. This problem affects every aspect of my daily life and I can t stand this any longer.

### output:

HelloThanks for query. Based on the symptoms that you have narrated I think you have inflammation of urethra or narrowing of urethra (Stricture urethra) and needs to be investigated. Please consult qualified Urologist for clinical examination and get following basic tests done to confirm the diagnosis.1) Urine routine and culture.2) Ultrasound scanning of abdomen and pelvis3) Radiological test Cystourethrogram to rule out stricture of urethra4) Endoscopic examination of urethra and bladder (Cystoscopy)Further treatment will depend upon result of these tests and final diagnosis. Chat Doctor. 