The prostate is a vital organ in the male reproductive system, responsible for producing seminal fluid that, when combined with sperm from the testicles and fluids from other glands (the seminal vesicle and the bulbourethral gland), makes up semen.
As men age, the prostate can develop different conditions, such as urinary problems, inflammation, and cancer. Understanding how the prostate works and its associated conditions helps in the early detection and management of prostate-related issues.
The prostate is a small gland found in men and is about the size and shape of a walnut. It is positioned below the bladder and surrounds the urethra, the tube that carries urine out of the body.
The prostate’s primary function is the production of seminal fluid that nourishes and transports sperm. The prostate muscles contract and block the opening between the bladder and urethra to prevent urine from mixing with semen, and only seminal fluid is expelled during ejaculation.
Additionally, the prostate secretes an enzyme called 5-alpha reductase that converts testosterone into dihydrotestosterone (DHT). DHT is a potent androgen necessary for male sexual function and the development of male characteristics such as facial hair.
Prostate cancer is the most common type of cancer affecting men in Singapore. At-risk groups include men above 50 and those with a family history of the disease. Prostate cancer usually progresses very slowly, may not display obvious symptoms, and may only require minimal or even no treatment for a long time. However, some types of prostate cancer can be aggressive. Even if you have no symptoms, a prostate exam and/or prostate-specific antigen (PSA) blood test are still generally recommended after the age of 45, particularly for those with a family history of prostate cancer.
Prostatitis occurs when your prostate becomes inflamed and swollen. However, it is not cancerous and should not be confused with the condition known as an enlarged prostate. Prostatitis is a common urinary tract issue particularly among men between the ages of 30 and 50. There are generally four types of prostatitis: acute bacterial prostatitis, chronic bacterial prostatitis, chronic prostatitis/chronic pelvic pain syndrome, and asymptomatic inflammatory prostatitis.
An enlarged prostate (benign prostatic hyperplasia – BPH) is very common, as the prostate naturally increases in size once a man passes the age of 40. When the increase becomes excessive, however, the prostate presses on the urethra, narrowing it and causing patients to suffer from difficulty urinating and emptying their bladders fully.
If left untreated, it can result in urinary tract infections (UTIs) or even a sudden inability to urinate—a painful medical emergency. While medical and surgical treatments for severe cases of BPH are available, treatment is usually not required. However, annual exams will be conducted annually to ensure no complications develop.
During the examination, the doctor will ask the patient to describe their symptoms and review their medical and family histories.
Additionally, they can perform further tests, including:
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