Prostate cancer is the most common cancer in men in the UK, with over 40,000 new cases diagnosed every year.
Prostate cancer usually develops slowly, so there may be no signs you have it for many years.
Symptoms often only become apparent when your prostate is large enough to affect the urethra (the tube that carries urine from the bladder to the penis).
When this happens, you may notice things like an increased need to urinate, straining while urinating and a feeling your bladder has not fully emptied.
However, these signs do not mean you have prostate cancer. It is more likely they are caused by something else, such as benign prostatic hyperplasia (also known as BPH or prostate enlargement).
What is the prostate?
The prostate is a small gland in the pelvis found only in men. About the size of a Satsuma, it is located between the penis and the bladder. It surrounds the urethra, the tube that carries urine from the bladder to the penis.
The main function of the prostate is to help in the production of semen. It produces a thick white fluid that is mixed with the sperm produced by the testicles, to create semen.