Evidence-Based Supplement & Herb Guides

Fatigue in Men: Common Causes, Lab Tests, and When to Get Checked

Learn the common causes of fatigue in men, which lab tests doctors use, when low testosterone testing makes sense, and which warning signs need prompt medical care.

Feeling tired after a hard week, a poor night of sleep, or a demanding workout is normal. Fatigue becomes more concerning when it keeps...

Fatty Liver Disease in Men: Causes, Symptoms, Alcohol Links, and Prevention

Learn what fatty liver disease means for men, including metabolic causes, alcohol links, symptoms, testing, warning signs, and practical steps to prevent or reverse liver fat.

Fatty liver disease means extra fat has built up inside liver cells. In men, it often sits at the crossroads of belly fat, high...

Feeling Like You Can’t Empty Your Bladder: Causes and Next Steps

Feeling like you can’t empty your bladder? Learn the common causes in men, urgent warning signs, useful tests, and treatment options for better urine flow.

Feeling like you cannot empty your bladder is frustrating because it often leaves you needing to pee again soon after you just went. Some...

Fertility After 40 in Men: Sperm Quality, Hormones, and Pregnancy Risks

Learn how male fertility changes after 40, including sperm quality, testosterone, DNA fragmentation, miscarriage risk, pregnancy planning, testing, and when to see a specialist.

Male fertility does not end at 40, but it does change. Men keep making sperm throughout adult life, which is why pregnancy is still...

Finasteride and Fertility: Sperm Changes, Libido, and When to Stop

Learn how finasteride can affect sperm count, semen volume, libido, and erections, plus when stopping before trying to conceive may make sense.

Finasteride helps many men slow hair loss or manage enlarged prostate symptoms, but it also raises a practical question: what happens if you want...

Finasteride for BPH: Benefits, Sexual Side Effects, and Monitoring

Finasteride for BPH can shrink an enlarged prostate and lower long-term urinary risk, but side effects and PSA monitoring matter. Learn who benefits, what to expect, and when to call your doctor.

Finasteride is a prescription medicine used for benign prostatic hyperplasia, or BPH, when an enlarged prostate is contributing to urinary symptoms. It does not...

Finasteride for Hair Loss: Benefits, Side Effects, Fertility, and Safety

Learn how finasteride works for male pattern hair loss, what results to expect, possible sexual and mood side effects, fertility concerns, and safety tips before starting.

Finasteride is one of the best-studied prescription treatments for male pattern hair loss. It is not a cosmetic supplement or a quick regrowth trick....

Fordyce Spots: What They Are and When to Get Checked

Learn what Fordyce spots look like on the penis, scrotum, lips, and mouth, how they differ from STIs, when to get checked, and what treatments are available.

Fordyce spots are small pale, yellowish, or skin-colored bumps caused by visible oil glands in places where hair follicles are absent or hard to...

Free PSA vs Total PSA: What the Difference Means for Prostate Cancer Risk

Understand free PSA vs total PSA, what percent-free PSA means, when it helps estimate prostate cancer risk, and what doctors usually do after an unclear or elevated PSA result.

A PSA result is rarely as simple as “normal” or “abnormal.” Total PSA tells you how much prostate-specific antigen is in your blood, while...

Free Testosterone vs Total Testosterone: Which Matters More?

Learn the difference between free testosterone and total testosterone, when each test matters, why SHBG changes results, and how to interpret low or borderline testosterone labs safely.

Total testosterone is usually the first number doctors look at, but it does not always tell the whole story. Free testosterone shows how much...

Frenulum Breve: Short Frenulum Symptoms and Treatment Options

Frenulum breve causes pain, tearing, bleeding, and tight foreskin movement. Learn symptoms, causes, stretching options, frenuloplasty, frenulectomy, circumcision, and recovery.

Frenulum breve means the small band of tissue under the head of the penis is too short or tight. This band, called the frenulum,...

Frenulum Tear: What to Do and When to Seek Care

Learn what to do for a frenulum tear, how long healing usually takes, what causes repeated tearing, and when bleeding, swelling, infection signs, or penile injury needs medical care.

A frenulum tear is a small rip in the thin band of tissue on the underside of the penis, where the foreskin or shaft...

Frequent Urination at Night: Nocturia Causes and Fixes in Men

Frequent urination at night in men is not always prostate-related. Learn common nocturia causes, symptom patterns, home fixes, treatment options, and when to get checked.

Waking once to pee after a late drink is common. Waking two, three, or more times most nights is different. That pattern, called nocturia,...

Genital Bumps in Men: Ingrown Hair, Folliculitis, Cysts, or STI?

Learn how to tell common genital bumps in men apart, including ingrown hairs, folliculitis, cysts, herpes, genital warts, molluscum, and syphilis, plus when to test and when to see a doctor.

A new bump on the penis, scrotum, pubic area, or inner thigh can be stressful because several causes look similar at first. Some are...

Genital Herpes vs Pimples: How to Tell the Difference

Learn how to tell genital herpes from pimples, ingrown hairs, and folliculitis, including key symptoms, testing options, warning signs, and what to do next.

A bump on the penis, scrotum, pubic area, or inner thigh can be stressful because genital herpes and ordinary pimples can look similar at...

Genital Numbness and Tingling in Men: Common Triggers and When to Get Checked

Learn common causes of genital numbness and tingling in men, including cycling pressure, pelvic floor tension, STIs, diabetes, nerve irritation, and urgent red flags.

Genital numbness or tingling can feel alarming, especially when it affects the penis, scrotum, perineum, groin, or inner thighs. Sometimes the cause is simple...

Genital Odor in Men: Common Causes and How to Fix It

Learn the common causes of genital odor in men, from sweat and smegma to yeast, jock itch, balanitis, urine dribbling, and STIs, plus practical ways to fix it.

Genital odor in men is usually caused by sweat, trapped moisture, smegma, urine drips, friction, or a mild skin irritation. A light musky smell...

Genital Rash in Men: Common Causes and When to Get Checked

Learn the common causes of genital rash in men, how to spot STI warning signs, what home care is safe, and when to get checked or tested.

A genital rash can be alarming because the same area can react to friction, sweat, soap, shaving, fungal overgrowth, inflammation, or a sexually transmitted...

Genital Skin Discoloration: Dark Spots, Redness, and When It’s Concerning

Learn what dark spots, redness, white patches, and other genital skin color changes can mean in men, including irritation, STIs, balanitis, lichen sclerosus, and warning signs that need medical care.

Genital skin color is not the same for every man, and it is not always even across the penis, scrotum, groin, or inner thighs....

Genital Warts: HPV Symptoms, Treatment, and Prevention

Learn what genital warts look like, how HPV spreads, when men should get checked, and which treatments, prevention steps, condoms, and vaccines reduce recurrence and risk.

Genital warts are small growths caused by certain types of human papillomavirus, usually HPV types 6 and 11. They often appear on the penis,...