Anatom3DSeminal vesicles
Glandulae vesiculosae · Semenné váčky
Reproductive system · male only
Looks like
Two coiled glands about 5 cm long behind the bladder, above the prostate.
What it does
Make most of the fluid in semen, rich in fructose.
Keeping it well
Blood in the semen is usually harmless and short-lived, but persistent episodes, especially over 40, should be checked.