What is the prostate? Structure, function and common conditions

Where is the prostate?

The prostate sits immediately below the bladder and in front of the rectum, the final part of the bowel. It surrounds the first section of the urethra, the tube that carries urine out of the bladder. This location helps explain why some prostate changes affect urinary flow. Knowing these neighbouring structures also makes examination and imaging reports easier to follow. The bladder, urethra and prostate work alongside one another, but they are separate structures with different functions. [1, 2]

What does it do?

The prostate contributes fluid to semen. Sperm and semen are different terms: sperm are reproductive cells, while semen includes the fluid that carries them. Prostate secretions form one part of that system. Urine is produced by the kidneys and collected in the bladder, rather than being made by the prostate. Keeping these distinctions in mind helps when discussing urinary symptoms, reproductive concerns or the purpose of a particular test. A urine sample and a semen sample answer different questions. [1, 2]

Growth with age

The size of the prostate can change during life. Benign prostate enlargement involves non-cancerous growth of prostate tissue. It may accompany difficulty starting urination or a weaker stream, although the gland’s size alone does not explain how much someone is affected. Symptoms and bladder function also matter. The main article “What Is Benign Prostatic Hyperplasia?” introduces this condition. Its companion articles explain urinary measurements, bladder diaries, night-time urination and the role of everyday habits in follow-up. [1]

Prostatitis and prostate cancer

Prostatitis describes several conditions involving inflammation or pain in and around the prostate. Not every form is caused by a bacterial infection. Prostate cancer is a malignant disease arising in prostate cells. These are distinct conditions, despite possible overlap in urinary symptoms. Early prostate cancer may cause no symptoms. The articles “What Is Chronic Prostatitis?” and “What Is Prostate Cancer?” discuss these subjects separately. Their differences help explain why the name of a disease cannot be inferred from one symptom alone. [2, 3]

Putting an assessment together

An appointment brings together the onset of symptoms, their effect on daily life, previous illnesses and family history. These details help determine which investigations are relevant. Prostate-specific antigen, usually shortened to PSA, is one blood measurement that may be used; it does not provide a complete account of the organ by itself. Taking earlier results with their dates makes it easier to identify what has changed. The appointment preparation article provides practical ways to organise that information without trying to select tests in advance. [1, 2]

When should assessment be urgent?

A complete inability to urinate, particularly with lower abdominal pain or fullness, needs urgent medical assessment. Painful urinary symptoms accompanied by fever and chills should also be assessed promptly. Visible blood in urine needs investigation. Persistent milder symptoms can still justify a planned appointment. These warning signs do not identify a particular prostate condition; seeking care allows the cause to be established. There is no need to complete a diary or wait for a routine prostate appointment when an urgent symptom appears. [3]

References

1. NIDDK: Prostate Problems
2. NCI: Prostate Cancer Treatment, Patient Version
3. NIDDK: Prostatitis, Inflammation of the Prostate

This article provides general health information. Consult your clinician for individual diagnosis and treatment decisions, and your pharmacist for questions about medicine use.

Published by Aymed İlaç · 17 October 2026