What is Enlarged Prostate?

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The prostate is a small gland, usually about the size of a walnut, that is situated just below the bladder and above the penis.^[1] The urethra passes through the prostate, which produces fluid that is mixed with sperm to create semen. When the prostate enlarges, it places pressure on the bladder and the urethra, which can cause urinary problems.

The prostate is made up of four zones:^[2]

• Peripheral zone. The area most easily felt during the standard digital rectal exam and the zone from which prostate cancer tends to develop.
• Transition zone. This surrounds the part of the urethra that passes through the prostate. It enlarges as men age, causing benign prostatic hyperplasia and consequent urinary symptoms.
• Central zone
• Anterior fibromuscular stroma

The prostate can become enlarged for a variety of reasons. The most common are:^[3]

• Prostatitis. Inflammation of the prostate that can occur in men of any age. There are several types of prostatitis, including infectious acute or chronic bacterial prostatitis, nonbacterial prostatitis, also known as chronic pelvic pain syndrome (CPPS), and asymptomatic inflammatory prostatitis in which an affected person will not show any symptoms.
• Benign prostate hyperplasia (BPH). Benign prostate hyperlasia is a benign, non-cancerous enlargement of the prostate, usually found in men older than 50 years of age. ‘Hyperplasia’ means that the number of cells increases.
• Prostate cancer. Cancer of the prostate, mostly originating in the peripheral zone. Prostate cancer can spread to other areas of the body.

Symptoms of an enlarged prostate

Because the prostate is positioned so close to the bladder, penis and rectum, most disorders that cause enlargement of the prostate share several basic symptoms. These include:^{[1][3][4][5][6]}

• An urgent, at times uncontrollable, need to urinate, which may lead to incontinence if the person can’t make it to the bathroom in time
• Trouble urinating
• Frequent urination
• Urinary hesitancy, i.e. slow start till urine streams out
• Weak flow of urine
• Frequent need to urinate at night, known as nocturia
• Intermittent flow, i.e. stopping and starting
• Leaking or dribbling urine

Good to know: In severe cases of an enlarged prostate, whatever the cause, urinary retention (being unable to completely empty the bladder) may also occur.

In addition, prostatitis may also have some or all of the following symptoms:^[7]

• Hematuria (blood in the urine) or blood in semen
• Pain in the penis and testicles
• Burning or painful sensation during urination
• Painful or difficult ejaculation
• Urethral discharge
• Pain and/or pressure in the rectum
• Painful defecation (painful bowel movements)
• Discomfort and/or pain in the genitals, groin, lower back and/or lower abdomen
• Recurring urinary tract infections (UTIs)
• Sexual problems and loss of sex drive
• Postcoital pain (pain after having sex)

In the case of prostate cancer, there may be no immediate symptoms, or there may be urinary symptoms like those listed above. In addition, there may be symptoms such as:

• Hematuria (blood in the urine) or blood in semen
• New onset of erectile dysfunction
• Back, especially lower back, hip or pelvic pain
• Unexplained weight loss

Good to know: A lot of the urinary symptoms above could also be caused by diabetes or may be related to the use of certain medications. If any of these symptoms are detected, it is of paramount importance that a physician is consulted and the cause diagnosed, so that appropriate next steps can be taken.

Worried you may have an enlarged prostate? contact your doctor.

Causes of enlarged prostate

A variety of different conditions and biological processes can cause the prostate to become enlarged. These include:

Prostatitis

Prostatitis is the painful inflammation of the prostate and can affect men of any age. There are several types of prostatitis:^[8]

• Bacterial prostatitis
• Acute bacterial prostatitis
• Nonbacterial prostatitis, also known as chronic pelvic pain syndrome
• Asymptomatic inflammatory prostatitis

Bacterial prostatitis, the most common type of prostatitis, can affect all adult men and sometimes accompanies recurring urinary tract infections.^[9] It can occur when bacteria from the bowel transfer to the skin, to the urethra and then up into the urinary tract. Another cause is urinary retention, caused by an enlarged prostate, bladder or kidney stones, causing a urinary tract infection that then spreads to the prostate.

Factors that put individuals at risk of prostatitis, other than UTIs, include prostate surgery or any complications of prostate surgery, catheterization (using a thin, flexible tube called a catheter to drain urine from the bladder, e.g. when healing after surgery), and infections spreading from other parts of the body. For prostatitis to be considered chronic, symptoms have to recur for at least three months. Recurrence is possible because the prostate can harbor infection. Symptoms can come and go. Chronic prostatitis tends not to cause fevers.

Acute prostatitis is caused by infection and manifests with chills, fever and muscle pain, in addition to the multitude of urinary symptoms mentioned above, often along with cloudy-appearing urine. It often causes intense/severe abdominal and/or pelvic pain. It is relatively rare compared to chronic prostatitis but must be treated promptly. Complications can include developing a prostate abscess and also urinary retention, where the patient is unable to pass urine due to pain, and which requires catheterization. A prostate abscess requires surgical intervention.^[8]

Nonbacterial prostatitis or chronic pelvic pain syndrome can cause persistent discomfort and/or pain in the lower pelvic region, mainly around the anus and the base of the penis. The causes of CPPS are not well understood and may involve autoimmune responses, nerve problems, inflammation, or another, yet unidentified cause.

In asymptomatic inflammatory prostatitis, there are no symptoms. The condition is usually diagnosed in the course of a prostate examination for other conditions or as part of a urologic routine check-up. It can cause elevated PSA-values – this is an enzyme produced by the prostate, often looked at during routine urologic check-ups of men over 50 and which can be detected in the blood.

Prostatitis is not a sexually-transmitted infection, although it can be caused by one. Prostatitis itself cannot be passed on via sexual activity, but sexually-transmitted infections that cause prostatitis can be.

Prostatitis is not prostate cancer, and there is currently no evidence to suggest that getting prostatitis increases the risk of prostate cancer.^[8]

Benign prostatic hyperplasia (BPH)

Benign prostatic hyperplasia is a common problem affecting men over the age of 40. By the time men turn 50 or older, an average of 40 percent have BPH to some degree. In BPH, the transition zone of the prostate enlarges, constricting the urethra, hindering, in some cases, the bladder’s ability to empty by throttling the flow of urine, which would normally move through the urethra and out of the bladder.

Benign prostatic hyperplasia is not cancer, but it can affect a person’s quality of life due to the urinary problems it causes, especially the increased need to urinate at night, which disrupts sleep.

If left untreated, BPH can cause complications such as kidney damage, urinary retention (the bladder not fully emptying anymore), bladder or kidney stones and urinary tract infections (UTIs), all due to disrupted urination. As it is largely an age-related disorder, BPH can worsen as it progresses if left unaddressed.

Read more about Benign Prostatic Hyperplasia »

Prostate cancer

This is the second most common kind of cancer affecting men, after skin cancer. Men who are at particular risk are:

• Men older than 50 years of age
• Men with a family history of prostate cancer
• Men affected by obesity and/or who consume a diet high in animal fat
• Men of African descent, e.g. African-American men

Prostate cancer can remain in the prostate and spread to closely located surrounding areas/tissues of the body – this is known as locally advanced prostate cancer, or it may spread to other parts of the body – this is known as advanced prostate cancer or metastatic prostate cancer.

Prostate cancer has a good survival rate. This is because it progresses slowly and may be found and treated before it has a chance to spread too far and become life-limiting.

Read more about Prostate Cancer »

Diagnosis of an enlarged prostate

In order to establish the possible underlying causes for an enlarged prostate, doctors will perform a variety of tests.

Tests that are commonly used to find the cause of an enlarged prostate include:

• A digital rectal exam. A physician or nurse will insert a gloved finger into the patient’s rectum to digitally examine the prostate for swelling and/or enlargement.
• Swab tests for urethral discharge or urine. To determine underlying conditions such as STIs/STDs (sexually transmitted infections/diseases) and urinary tract infections. A swab of discharge or urine is taken and sent to a medical laboratory for culturing, so that any microorganisms are identified.
• Urinalysis. A urine sample is sent to a medical laboratory for analysis and may be tested for urea nitrogen or creatinine, among other things.
• Blood tests. A sample of blood is sent to a medical laboratory for analysis, which may include tests for creatinine or blood urea nitrogen, as well as antibodies and infectious agents.
• Prostate-specific antigen test. A blood sample is sent to a medical laboratory to be tested for prostate-specific antigen (PSA), an enzyme produced by cells in the prostate. A change in PSA levels can indicate that there is a problem with the prostate.

If patients are referred to a urologist, they may have further tests, including:

• Ultrasounds to check the kidneys, the amount of urine left in bladder and the prostate itself.
• Urine flow studies, which involve urinating into a specialised device that measures the speed/rate of urine flow. A flow that is slower than normal may indicate an enlarged prostate.
• A cystoscopy, in which a tiny camera is threaded up the urethra at the end of the very thin, flexible tube. This can pick up damage, inflammation or changes in the bladder and is usually done if there are symptoms such as blood in the urine, painful urination, or a urinary tract infection.
• Bladder pressure (urodynamic) tests, in which tube sensors are placed in the bladder and sometimes also the rectum to measure pressure in the urethra, bladder and possibly rectum. An enlarged prostate can cause pressure in any of those places to increase, because it presses on the bladder and rectum.
• The International Prostate Symptom Score, a questionnaire formulated to determine the severity and duration of prostate symptoms.

Before referring the patient for tests, the physician may also ask questions in order to determine the possible causes of the discomfort, their severity, and their duration. Such questions may cover:

• Medications used, prescribed and over-the-counter medication
• Other medical conditions, such as diabetes
• Medical conditions in other family members
• Lifestyle and diet
• Existing symptoms: their duration, whether they are getting worse and how they are affecting quality of life.

If you suspect that you or a loved one may have an enlarged prostate, contact your doctor Find My doctor location

Treatment

Treatment for an enlarged prostate will depend on the condition which has caused the prostate to enlarge. No one treatment is best for every patient, and there are a number of treatment options available. Some may be as minor as lifestyle changes, and others may involve a hospital stay and surgery.

Treatment for prostatitis

Treatment for prostatitis includes:

• Antibiotics to kill the infectious agent
• Alpha-blockers, which relax the muscles near the prostate and relieve pressure on the urethra
• Other medications, such as finasteride or quercetin
• Muscle relaxants
• Painkillers to manage general discomfort/pain
• Laxatives to manage bowel discomfort caused by constipation

In rare cases, prostatectomy (prostate surgery) may be necessary. Read more about Prostatectomy »

Treatment for benign prostate hyperplasia (BPH)

Treatment for benign prostate hyperplasia can involve:^[10][11]

• Lifestyle changes, such as limiting a night-time consumption of liquids, avoiding caffeine and alcohol, avoiding medication such as diuretics, decongestants and antihistamines and getting more exercise, as well as dietary improvements, such as eating more fibre, avoiding artificial sweeteners and sweetened beverages.
• Medication, such as alpha-blockers or 5-alpha-reductase inhibitors.
• Interventions, such as the Urolift® system, a non-surgical proprietary device that uses tiny implants to lift the prostate away from the urethra and thereby relieve BPH symptoms that result from pressure on the urethra.^[12]
• Surgical procedures, such as a prostatectomy (removal of the prostate), transurethral microwave thermotherapy (TUMT) (using heat/microwaves),^[13][14] prostate laser, and Transurethral Resection of the Prostate (TURP).
• Herbal prostate treatments, such as saw palmetto extract. Saw palmetto extract is made from the fruit of the saw palmetto, which is native to the southeast and Gulf coasts of North America and may potentially assist in reducing urinary frequency and increasing urinary flow.

Read more about benign prostatic hyperplasia treatment »

Treatment for prostate cancer

Treatment of prostate cancer can involve:^{[15][16][17][18]}

• Prostatectomy. The surgical removal of all or part of the prostate gland, which can be done as open surgery or laparoscopically (keyhole surgery). There are several different types of prostatectomy.
• External beam radiotherapy. This involves x-ray beams, which are focused on the prostate to destroy cancer cells. This is a non-surgical option.
• Permanent seed brachytherapy. This involves implanting small radioactive pellets into the prostate gland to destroy cancer cells.
• Hormone therapy. This may be used instead of radiation therapy or if the cancer has spread too far to be susceptible to prostatectomy or radiation treatment; it involves orchiectomy (surgical castration) and/or various treatments to lower androgen levels (chemical castration).^[19]
• Cryotherapy. This is an option for cases where the cancer is still within the prostate or is locally advanced. It is non-invasive and involves the insertion of cryotherapy needles into the prostate, through which a certain gas is then passed in order to freeze the tissue and thereby also ideally killing the cancer cells.^[20]
• Focused ultrasound therapy. This is a non-invasive method of treating prostate cancer using focused beams of ultrasound energy to heat and destroy cancer locations in the prostate.^[21]

Enlarged prostate FAQs

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1. NHS Choices. “Prostatitis” 3 March 2017. Accessed 13 February 2018. ↩ ↩

2. Canadian Cancer Society. “The prostate”. Accessed 13 February 2018. ↩

3. Prostate Cancer UK. “Enlarged prostate”. December 2017. Accessed 15 February 2018. ↩ ↩

4. University of California Los Angeles Health “Conditions treated: definition of BPH (enlarged prostate)”. Accessed 12 February 2018. ↩

5. Laurence Knott. “Prostate Gland Enlargement”. 12 October 2015. Accessed 12 February 2018. ↩

6. Cancer Research UK. “Enlarged prostate”. December 2017. Accessed 15 February 2018. ↩

7. Canadian Cancer Society.“Prostatitis”. Accessed 13 February 2018. ↩

8. Laurence Knott. “Chronic Prostatitis”. 29 June 2015. Accessed 12 February 2018. ↩ ↩ ↩

9. Laurence Knott. “Acute prostatitis”. 19 June 2015. Accessed 12 February 2018. ↩

10. Amboss. “Benign prostatic hyperplasia – subdivision: epidemiology.” 13 April 2018. Accessed: 21 April 2018. ↩

11. Penn Medicine. “Enlarged Prostate”. 26 August 2017. Accessed 14 February 2018. ↩

12. The Urolift® System is not affiliated with Ada, and is mentioned here in order to provide a full overview of current treatment options for BPH. ↩

13. The Cochrane Database of Systematic Reviews. “Microwave thermotherapy for benign prostatic hyperplasia.” 12 September 2012. Accessed: 23 April 2018. ↩

14. Medscape. “Transurethral Microwave Thermotherapy of the Prostate (TUMT).” 23 December 2015. Accessed: 14 April 2018. ↩

15. Colin Tidy. “Prostate Cancer”. 24 January 2017. Accessed 12 February 2018. ↩

16. Cancer Research UK. “About prostate cancer”. July 2017. Accessed 14 February 2018. ↩

17. Amboss. “Prostate cancer, subdivision: etiology.” Accessed: 21 April 2018. ↩

18. Prostate Cancer UK. “Treatments.”. Accessed 14 February 2018. ↩

19. American Cancer Society. “Hormone therapy for Prostate Cancer.”. Accessed 16 February 2018. ↩

20. Cancer Research UK. “Cryotherapy”. 5 July 2016. Accessed 12 February 2018. ↩

21. Focused Ultrasound Foundation. “Prostate cancer.”. 16 February 2018. Accessed 19 February 2018. ↩

22. Harvard Medical School and Harvard Health Publications Prostate Knowledge. “Sex and the Prostate: Overcoming erectile dysfunction when you have prostate disease.” Accessed 19 February 2018. ↩

23. Prostate.net. “What are the causes of male infertility?”. 29 October 2012. Accessed 16 February 2018. ↩

24. Urology Clinics of North Texas. “Male Infertility – Causes.” Accessed 16 February 2018. ↩

25. Andrology Australia. “Male Infertility.”. 23 March 2016. Accessed 13 February 2018. ↩

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**What is Enlarged Prostate?**



**Q: What is an enlarged prostate?**



**A:** An enlarged prostate, also known as benign prostatic​ hyperplasia (BPH),⁤ is a‌ condition in which the prostate gland, a small organ located below the​ bladder in men, enlarges. This enlargement can cause urinary⁣ problems, such as difficulty ⁤urinating, ‌frequent urination, and ‌a weak urine stream.



**Q:⁢ What causes an enlarged​ prostate?**



**A:** The exact cause of BPH is unknown, ‌but it is thought​ to be related⁢ to hormonal changes that occur as men age. ​As men get older, the ⁣levels of the male hormone testosterone decrease, which can lead to an increase ‌in the production of another hormone called dihydrotestosterone (DHT). ⁤DHT is believed to stimulate ⁤the growth of the prostate gland.



**Q: What are‍ the symptoms of an enlarged prostate?**



**A:** The ⁢symptoms of BPH can vary depending on the size of the prostate and how much it is pressing on ​the urethra. Common ​symptoms include:



* ⁢Difficulty starting to urinate

* Hesitancy when urinating

* ‌Weak urine stream

*‍ Frequent urination, especially at night

* Feeling like you can’t‍ empty your bladder completely

* Dribbling after‌ urinating



**Q: How is ‍an enlarged prostate⁣ diagnosed?**



**A:**⁤ An enlarged prostate can be diagnosed with a physical exam and a blood test called a prostate-specific antigen⁢ (PSA) test. The ⁢PSA test measures the ⁤level of PSA in the ⁣blood, which can be elevated ‌in men with an enlarged prostate. Other tests that may be used to​ diagnose BPH⁣ include:



* Digital rectal exam (DRE)

* Transrectal ultrasound (TRUS)

* Uroflowmetry



**Q: How is an enlarged prostate treated?**



**A:** The treatment for an enlarged prostate depends on the severity​ of‌ the symptoms. In some cases, lifestyle changes, such ⁤as avoiding caffeine and alcohol and drinking⁢ plenty of fluids,⁢ may be enough ‍to improve symptoms. ‍Other treatments for BPH include:



*⁢ Medications

* Surgery

* Minimally invasive procedures



**Q: What are the complications of an​ enlarged prostate?**



**A:** ‍If left untreated, an enlarged prostate⁢ can lead ‍to a number of complications, including:



* Urinary retention

* Urinary⁣ tract infections (UTIs)

* Kidney stones

* Bladder damage



**Q: How⁢ can I prevent ‌an enlarged⁣ prostate?**



**A:** There is⁢ no sure way to prevent an enlarged prostate, but there ​are some things that men can ⁢do to reduce their risk,⁢ including:



* Eating a healthy diet

* Exercising ⁣regularly

* Avoiding obesity

* Limiting alcohol intake

* Quitting⁢ smoking



**Additional Resources:**



* ​ [American Urological Association: Benign Prostatic Hyperplasia](https://www.auanet.org/conditions/benign-prostatic-hyperplasia-bph)

* [National Institute of Diabetes and Digestive and Kidney Diseases: Enlarged Prostate](https://www.niddk.nih.gov/health-information/urologic-diseases/enlarged-prostate)