Ejaculation During Bowel Movement

Q. What might be the cause of ejaculating while having a bowel movement? Should this be a concern?

A. It is not uncommon for some men to expel some semen when they have a bowel movement. Most of the fluid that comes out during ejaculation comes from the seminal vesicles and the prostate. Both of these organs sit up against the rectum. (That is why the doctor inserts a finger in the rectum to examine these organs.) Sometimes, a large bowel movement can place enough pressure on these organs to force some semen into the urethra and out of the penis. This is not a cause for concern.