Why Does Your Prostate Become Enlarged?

If you’re approaching your 50s, you’ve probably noticed some changes in your body. 

Maybe you’re waking up more often at night to urinate. Perhaps your urinary stream isn’t as strong as it used to be. Or maybe you feel like your bladder never completely empties.

Many men assume these changes are simply part of aging. While age plays an important role, there is usually a specific reason behind these symptoms: 

The truth is that an enlarged prostate is extremely common. 

More importantly, effective treatments are available today, including minimally invasive options that can help improve quality of life without major surgery.

Let’s explore why the prostate enlarges, what symptoms it can cause, and when it’s time to seek medical care.

What Is the Prostate?

The prostate is a small gland that belongs to the male reproductive system.

In younger men, it is about the size of a walnut. It sits below the bladder and surrounds part of the urethra, the tube that carries urine out of the body.

The prostate helps produce fluid that nourishes and transports sperm.

Although it plays an important role in reproductive health, many men rarely think about their prostate until symptoms appear.

Why the Prostate’s Location Matters

The prostate wraps around the urethra like a ring.

As the gland grows larger, it can squeeze the urethra and make it harder for urine to pass freely.

This simple anatomical fact explains why many prostate symptoms involve urination.

What Is an Enlarged Prostate?

An enlarged prostate is medically known as Benign Prostatic Hyperplasia (BPH).

“Benign” means non-cancerous.

“Hyperplasia” refers to an increase in the number of cells within the prostate.

As these cells multiply over time, the gland becomes larger.

PH becomes increasingly common with age. The American Urological Association reports that the prevalence of histopathologic BPH is greater than 50% by age 60 and rises to as high as 90% by age 85.

Importantly, BPH is not prostate cancer. It also does not increase the risk of developing prostate cancer.

Why Does the Prostate Become Enlarged?

This is one of the most common questions men ask.

Unfortunately, researchers still do not know the exact cause. However, decades of research have identified several factors that strongly contribute to prostate growth.

Aging Is the Biggest Factor

Age is the strongest risk factor for prostate enlargement.

The prostate usually continues growing throughout a man’s life.

Many men begin experiencing symptoms in their late 40s or early 50s. However, symptoms often become more noticeable during their 60s and 70s.

According to the Mayo Clinic, an enlarged prostate rarely causes symptoms before age 40, but approximately half of men by age 60 and up to 90% by age 85 develop symptoms.

As men live longer, BPH becomes increasingly common.

Hormonal Changes Play a Major Role

Hormones help regulate prostate growth.

As men age, testosterone levels gradually decline. However, the balance between testosterone and estrogen also changes.

Researchers believe these hormonal shifts may stimulate prostate cell growth.

Another important hormone is dihydrotestosterone (DHT).

DHT is derived from testosterone and plays a key role in prostate development. Some studies suggest that DHT continues to accumulate inside the prostate even as testosterone levels decrease.

Consequently, the gland may continue growing over time.

Genetics May Influence Risk

Family history can also increase the likelihood of developing BPH.

Men whose fathers or brothers have experienced prostate enlargement may face a higher risk themselves.

Although genetics alone do not guarantee BPH, they appear to influence how the prostate responds to aging and hormonal changes.

Metabolic Health May Contribute

Researchers have also identified links between BPH and several metabolic conditions.

These include:

• Obesity
• Type 2 diabetes
• High blood pressure
• Metabolic syndrome

Scientists continue studying these relationships. However, chronic inflammation and hormonal disruptions may help explain the connection.

Maintaining a healthy lifestyle may support overall prostate health as men age.

What Symptoms Can an Enlarged Prostate Cause?

Not every enlarged prostate causes symptoms.

However, as the gland grows, it may place increasing pressure on the urethra and bladder.

Common Urinary Symptoms

Symptoms often develop gradually.

Many men notice:

• Frequent urination
• Urgent need to urinate
• Weak urinary stream
• Difficulty starting urination
• Interrupted urine flow
• Dribbling after urination
• Feeling that the bladder is not completely empty
• Increased nighttime urination (nocturia)

These symptoms can significantly affect sleep, work performance, travel, and daily activities.

How Symptoms Affect Quality of Life

Many men plan their day around bathroom access.

Some avoid long meetings, road trips, flights, or social events.

Others wake up multiple times each night, leading to fatigue and reduced energy during the day.

Although these symptoms may seem minor initially, they can become increasingly disruptive over time.

When Should You See a Doctor?

Many men delay treatment because they assume urinary symptoms are a normal part of aging.

However, persistent symptoms should never be ignored.

Warning Signs That Require Evaluation

You should schedule a medical evaluation if you experience:

• Difficulty urinating
• Frequent nighttime urination
• Sudden inability to urinate
• Blood in the urine
• Recurrent urinary tract infections
• Pain during urination

Early evaluation helps identify the cause and prevent complications.

Additionally, some urinary symptoms may result from conditions other than BPH.

Enlarged Prostate vs. Prostate Cancer

Many men immediately worry about cancer.

Fortunately, BPH and prostate cancer are different conditions.

Although both can occur in older men, one does not cause the other.

Nevertheless, a physician should evaluate any new urinary symptoms to determine the correct diagnosis.

How Is an Enlarged Prostate Treated?

Treatment depends on symptom severity, prostate size, and overall health.

Lifestyle Changes

Men with mild symptoms may benefit from simple adjustments.

These may include:

• Limiting evening fluid intake
• Reducing caffeine consumption
• Avoiding excessive alcohol
• Managing weight
• Staying physically active

For some patients, these changes provide meaningful relief.

Medications

Several medications can help relax prostate tissue or slow prostate growth.

Doctors often recommend medication as an initial treatment for moderate symptoms.

Minimally Invasive Treatments

When symptoms persist despite medication, minimally invasive procedures may offer an effective solution.

One increasingly popular option is Prostate Artery Embolization (PAE).

During PAE, a vascular specialist blocks the prosthetic arteries that supply blood to the enlarged prostate.

As blood flow decreases, the prostate gradually shrinks.

Consequently, urinary symptoms  improve without removing prostate tissue.

Why More Men Are Exploring Prostate Artery Embolization

Many men want relief from urinary symptoms but prefer to avoid surgery when possible.

That is one reason why Prostate Artery Embolization continues gaining attention.

PAE offers several potential advantages:

• No surgical incision
• Outpatient treatment
• Faster recovery
• Reduced risk of some surgical complications

Not every patient qualifies for PAE. However, a consultation with an experienced specialist can determine whether it is an appropriate option.

The Importance of Expert Evaluation

Every man’s situation is unique.

The size of the prostate, symptom severity, medical history, and treatment goals all influence the best approach.

At South Florida Vascular Associates, patients receive individualized evaluations designed to identify the most appropriate treatment plan.

Dr. William Julien is recognized for his expertise in advanced vascular procedures and minimally invasive techniques. His 30 years of experience with complex vascular interventions helps patients explore modern alternatives to traditional surgery when appropriate.

Final Thoughts

An enlarged prostate is one of the most common health concerns men face after age 50.

Although aging plays a major role, hormonal changes, genetics, and overall health also contribute to prostate growth.

The good news is that men no longer have to simply live with the symptoms. Today, a wide range of treatment options can improve urinary function and quality of life.

If frequent urination, nighttime bathroom trips, or a weak urinary stream are affecting your daily routine, now is the time to seek answers.

An evaluation by a qualified specialist can help you understand your options and find the treatment that best fits your needs.

What is the newest treatment for enlarged prostate?

For men who want relief from BPH without treatment instruments being passed through the penis, prostate artery embolization (PAE) offers an important alternative.

Unlike transurethral procedures, PAE treats the enlarged prostate through a tiny arterial access point in the wrist or groin. This allows the prostate to shrink without cutting, heating, or removing prostate tissue through the urethra.

PAE also has no sexual side effects, including retrograde ejaculation and erectile dysfunction, compared with more invasive procedures such as TURP.

Frequently Asked Questions About Enlarged Prostate

Academic and Medical Sources

National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)

Mayo Clinic – Benign Prostatic Hyperplasia (BPH)

Johns Hopkins Medicine – Benign Prostatic Hyperplasia

Cleveland Clinic – Enlarged Prostate (BPH)

Urology Care Foundation

Harvard Health Publishing

National Library of Medicine (PubMed)