Looking for Prostate Cancer Treatment in Noida meet Dr Rahul Gupta The prostate is a small organ about the size of a walnut. It lies below the bladder (where urine is stored) and surrounds the urethra (the tube that carries urine from the bladder). The prostate makes a fluid that helps to nourish sperm as part of the semen (ejaculatory fluid). https://maps.app.goo.gl/Gbtu3ueRwY5VaWKH7