Evidence-Based Supplement & Herb Guides

PSA Test Explained: What It Measures and What Results Mean

Understand what a PSA test measures, why levels rise, what high or borderline results can mean, and what usually happens next after repeat testing, MRI, or biopsy.

A PSA test is a blood test that measures prostate-specific antigen, a protein made by prostate cells. Doctors use it most often to help...

Pumpkin Seed Oil for Prostate Health: Evidence, Dosage, and Safety

Pumpkin seed oil may modestly help BPH urinary symptoms in some men. Learn what the evidence shows, common doses, safety concerns, and when to see a doctor.

Pumpkin seed oil is often marketed for prostate support, especially for urinary symptoms linked with an enlarged prostate. The evidence is not strong enough...

Receding Hairline in Men: Early Signs, Causes, and Treatment Options

Learn the early signs of a receding hairline in men, why it happens, when to get checked, and which treatments may slow hair loss or improve thickness.

A receding hairline usually starts quietly. The corners above the temples creep back, the forehead looks a little taller in photos, or the front...

Rectal STI Symptoms in Men: Pain, Discharge, Bleeding, and Testing

Learn the common rectal STI symptoms in men, including anal pain, discharge, bleeding, sores, diarrhea, and when rectal swab testing or urgent care is needed.

Rectal STI symptoms in men can be obvious, mild, or completely absent. Anal pain, rectal discharge, bleeding after sex, itching, sores, urgency to poop,...

Recurrent UTIs in Men: Prostate Links, Testing, and Prevention

Recurrent UTIs in men often involve the prostate, poor bladder emptying, stones, STIs, or obstruction. Learn symptoms, tests, treatment options, prevention steps, and when to see a urologist.

A urinary tract infection in a man is not something to brush off as “just a bladder infection.” Men can get simple bladder infections,...

Red Spots on the Penis: Irritation, Balanitis, Herpes, or Other Causes?

Learn what red spots on the penis may mean, including irritation, balanitis, herpes, other STIs, skin conditions, testing, treatment, and urgent warning signs.

Red spots on the penis can come from something minor, such as friction, sweat, shaving, soap, or dry skin. They can also be a...

Retrograde Ejaculation: Dry Orgasm Causes, Fertility Impact, and Treatment

Learn what retrograde ejaculation means, why dry orgasms happen, how it affects fertility, and what treatments can help restore ejaculation or support pregnancy.

Retrograde ejaculation happens when semen moves backward into the bladder during orgasm instead of coming out through the penis. The orgasm may still feel...

Rezum for BPH: Water Vapor Therapy, Recovery, and Side Effects

Learn how Rezum water vapor therapy treats BPH, who it may help, what recovery is like, common side effects, warning signs, results, and how it compares with other enlarged prostate treatments.

Rezum is a minimally invasive treatment for urinary symptoms caused by benign prostatic hyperplasia, or BPH. Instead of cutting out prostate tissue, it uses...

SARMs and Men’s Health: Testosterone Suppression, Liver Risk, and Fertility Concerns

SARMs can suppress testosterone, affect sperm production, and cause liver injury. Learn the warning signs, key lab tests, fertility risks, and safer next steps for men.

SARMs are often marketed as a cleaner way to build muscle, cut fat, or recover faster than with anabolic steroids. That message leaves out...

Sauna and Hot Tubs: How Heat Affects Sperm and Fertility

Learn how saunas, hot tubs, fever, laptops, and other heat sources may affect sperm count, motility, recovery time, and male fertility testing.

Heat can affect sperm because the testicles work best a little cooler than the rest of the body. That is why they sit outside...

Saw Palmetto for Prostate Health: Evidence, Benefits, and Side Effects

Saw palmetto may offer modest urinary symptom relief for some men, but strong studies show limited benefit for BPH. Learn side effects, safety tips, and when to seek care.

Saw palmetto is one of the most common supplements marketed for men with enlarged prostate symptoms, especially frequent urination, weak stream, and waking at...

Semen Analysis Explained: What Results Mean and Next Steps

Learn how to read semen analysis results, including sperm count, motility, morphology, volume, abnormal patterns, repeat testing, causes, and next steps.

A semen analysis is often the first test used to check the male side of fertility. It measures how much semen is produced, how...

Semen Changes: Watery, Thick, or Clumpy—What’s Normal and What’s Not

Learn what watery, thick, clumpy, yellow, or bloody semen can mean, what changes are usually normal, and when symptoms should be checked by a doctor.

Semen can look different from one ejaculation to the next. It may be white, grayish, slightly yellow, thicker after a few days without sex,...

Semen Smell Changes: Diet, Dehydration, or Infection?

Learn what semen smell changes can mean, including diet, dehydration, infection signs, color changes, testing options, and when men should see a doctor.

A change in semen smell is usually not an emergency, but it can be confusing because the cause is not always obvious. Semen normally...

Sex After Having a Baby: Low Libido, ED, Stress, and Relationship Changes

Sex after having a baby can change because of low libido, ED, stress, sleep loss, recovery, pain, and relationship strain. Learn what helps and when to seek care.

Sex often changes after a baby arrives, even in strong relationships. Desire may drop, erections may become less reliable, and the old rhythm of...

Shockwave Therapy for ED: Evidence, Benefits, Costs, and Who Might Benefit

Shockwave therapy for ED may help selected men with mild to moderate blood-flow-related erectile dysfunction, but results vary. Learn the evidence, costs, risks, and who may benefit.

Shockwave therapy for ED is a noninvasive treatment that uses low-intensity sound waves on the penis to try to improve blood flow. It is...

Skin Cancer in Men: Warning Signs, Self-Checks, and Prevention

Learn the warning signs of skin cancer in men, how to do a monthly skin self-check, which spots need medical care, and how to prevent UV damage.

Skin cancer can start as a small spot that is easy to ignore: a scab from shaving that keeps coming back, a rough patch...

Sleep Apnea in Men: Symptoms, Risks, and When to Get a Sleep Study

Learn the signs of sleep apnea in men, including snoring, gasping, fatigue, high blood pressure, and when a home or lab sleep study may be needed.

Sleep apnea often looks like “just snoring” from the outside, but the real problem is repeated breathing disruption during sleep. In men, it may...

Smoking and Men’s Health: ED, Fertility, Heart Disease, and Cancer Risk

Learn how smoking affects men’s erectile function, sperm quality, heart disease risk, blood pressure, cancer risk, screening needs, and what can improve after quitting.

Smoking affects men’s health long before a diagnosis like heart disease or cancer appears. Erections, stamina, sperm quality, blood pressure, and exercise tolerance can...

Smoking and Sperm Quality: What Improves After You Quit

Learn how smoking affects sperm count, motility, semen volume, and DNA quality, what may improve after quitting, and when to repeat fertility testing.

Smoking can affect sperm in several ways: fewer sperm, weaker movement, lower semen volume, more abnormal forms, and higher sperm DNA damage. Quitting does...