Enlarged Prostate (BPH): Symptoms, Causes, and Treatment Options That Work

Getting up two or three times a night to urinate, or feeling like your bladder never quite empties, is one of the most common reasons men in their 50s and 60s talk to a clinician. Most of the time, the cause is not cancer. It is benign prostatic hyperplasia, or BPH -- a noncancerous enlargement of the prostate that happens to most men as they age. It is common, it is well understood, and it is very treatable. Here is what actually causes it, how it is diagnosed, and which treatments the evidence actually supports.

What BPH is and why it happens

The prostate is a walnut-sized gland that sits just below the bladder and wraps around the urethra, the tube that carries urine out of the body. Starting around age 40, prostate tissue in most men begins a second growth phase driven by dihydrotestosterone (DHT), a hormone derived from testosterone. As the gland enlarges, it can squeeze the urethra and irritate the bladder, which is what produces the hallmark urinary symptoms.

BPH is extremely common with age. The National Institute of Diabetes and Digestive and Kidney Diseases estimates that about half of men between 51 and 60 have some degree of prostate enlargement, and that figure rises further in later decades. It is a normal part of aging for the prostate, not a disease process related to cancer, and having BPH does not raise your risk of developing prostate cancer.

The symptoms worth paying attention to

BPH symptoms are usually described in two groups: ones related to a blocked urine flow, and ones related to an irritated bladder.

Obstructive symptoms include a weak or interrupted stream, straining to start urinating, and a sense that the bladder has not fully emptied. Irritative symptoms include needing to urinate frequently, especially at night (nocturia), a sudden strong urge to go, and in some cases a sense of urgency that is hard to control.

None of these symptoms are specific to BPH on their own. Urinary tract infections, bladder problems, and prostate cancer can all produce similar complaints, which is why a clinician will usually ask about symptom severity and duration, do a focused exam, and check labs rather than assume based on symptoms alone. Sudden inability to urinate at all, blood in the urine, fever, or significant pain are not typical BPH and need prompt evaluation.

How BPH is actually diagnosed

A BPH work-up typically starts with a symptom questionnaire -- often the International Prostate Symptom Score (IPSS) -- which puts a number on how much your symptoms affect daily life and gives a baseline to track over time. From there, a clinician will usually review your medication list (some antihistamines, decongestants, and antidepressants worsen urinary symptoms), check a urinalysis to rule out infection or blood, and discuss whether a PSA (prostate-specific antigen) blood test is appropriate based on your age and risk factors.

A digital rectal exam, which gives a rough sense of prostate size and texture, is often part of the visit as well. Imaging such as a bladder ultrasound or more specialized urodynamic testing is reserved for men with more severe symptoms, incomplete emptying, or signs that point toward a different diagnosis, per AUA guidance on BPH/LUTS evaluation.

Treatment options, from least to most invasive

Treatment is driven by how much the symptoms actually bother you, not by prostate size on its own. The AUA guideline lays out a stepwise approach.

Watchful waiting. For mild symptoms that are not significantly affecting quality of life, no treatment at all is a reasonable choice, paired with periodic follow-up to watch for progression.

Lifestyle adjustments. Cutting back on evening fluids and caffeine, treating constipation, and avoiding decongestants and certain antihistamines that tighten the muscle around the bladder neck can meaningfully reduce symptoms for many men, without any medication.

Alpha-blockers. Medications like tamsulosin and alfuzosin relax smooth muscle in the prostate and bladder neck, easing urine flow within days to a couple of weeks. They are usually the first medication tried because they work quickly, though some men notice dizziness or a drop in blood pressure when standing.

5-alpha-reductase inhibitors. Finasteride and dutasteride block the conversion of testosterone to DHT, which can shrink the prostate over three to six months and slow disease progression, particularly in men with a larger prostate. The landmark MTOPS trial found that combining an alpha-blocker with finasteride reduced the risk of BPH getting worse over time more than either drug alone, and the CombAT trial found a similar long-term benefit from combining dutasteride with tamsulosin. These drugs can lower libido or cause erectile dysfunction in a minority of men, which is worth discussing honestly before starting.

Minimally invasive procedures. For men whose symptoms do not respond well enough to medication, or who would rather not take medication long-term, office-based procedures such as UroLift (which places small implants to hold the enlarged tissue open) or Rezum (which uses steam to shrink prostate tissue) are generally considered, per AUA guidance, with a shorter recovery than traditional surgery for many men.

Surgery. For larger prostates or more severe obstruction, procedures like transurethral resection of the prostate (TURP) remain the most durable option and are typically reserved for men who have not improved with other measures.

When to loop in a clinician sooner rather than later

You do not need to wait until symptoms are severe to bring them up. Early evaluation matters because some BPH symptoms overlap with conditions that genuinely need prompt attention, and because catching the issue early opens up more options, including the lifestyle and medication approaches that are easiest to start. See a clinician promptly if you notice blood in your urine, cannot urinate at all, have fever or flank pain alongside urinary symptoms, or if nighttime bathroom trips are disrupting your sleep and daytime function.

Getting evaluated without the wait

BPH is one of the most common reasons men see a clinician past age 50, and most cases are managed well with a conversation, a few labs, and the right first-line medication. Stonewood Health's men's health care covers exactly this kind of evaluation -- symptom review, appropriate lab work, and a treatment plan that starts where you actually are, by telehealth appointment in every state we are licensed in. Most major plans are accepted, including Medicare, so getting this looked at does not have to be an added expense on top of the coverage you already have.