The prostate is a gland in the male reproductive system that is located just below the bladder and in front of the rectum. It is approximately the size and shape of a walnut and surrounds the urine channel, also known as the urethra. The prostate functions in producing fluid that makes up part of the semen.
Prostate cancer is a disease that affects the cells of the prostate. If the cells begin to divide when they aren't supposed to, they can form tumors. A cancerous tumor inside the gland can block the flow of urine. If the tumor is left untreated, it may spread to local lymph nodes and other areas in the body. The cause of the disease is unknown. But a man may live for many years without knowing he has prostate cancer.
Learn more about the patient-centered, high-quality approach to prostate cancer care provided to patients diagnosed and treated at Lahey Clinic.