A vital part of the male reproductive system is the prostate. The prostate is a small and muscular gland that surrounds your urethra. It’s movements during sexual activity is what propels semen through the penis during orgasm. In some men, the prostate can enlarge and cause symptoms to occur. While an enlarged prostate is usually not an immediately severe condition, it can lead to uncomfortable symptoms such as a weak urinary stream, painful urination, or blood in the urine. Read our section dedicated to prostate health to find out more about treatment options, symptoms, and causes.