Painful Burning after Ejaculation?

Dear Dr. Motola:

I am 62 years old. In August of 2007 I had PVP surgery after suffering for 9 years with symtoms of an enlarged prostate. The operation was successful. My stream is strong and I get up only once at night to urinate. I got my life back. I don't have "urgency" issues and kayak, travel and basically enjoy life. I experienced many of the common post-op complications, including the need for catheterization several days after surgery, passing blood clots and intense burning while urinating. After 6 months everything was fine, except for one lingering problem. I experienced a burning sensation after ejaculation. I returned to my doctor for some answers and he was baffled. The burning ranges from very intense to very mild. Now, 14 months after the surgery, I still have this lingering problem and no answers. Can anyone help?

Burning on ejaculation may be associated with prostatitis. Cultures of the semen may have some benefit in trying to determine the cause of the burning. A course of antibiotic therapy may be helpful. If cultures are negative, then cystoscopy may be of some benefit in trying to determine the cause of your problem