Index/Organizations/StatPearls

StatPearls

Healthcare education and technology company

Fact-Checks

68 results
Dec 9, 2025
Most Viewed

At what age does male penile growth typically stop (puberty timeline)?

Most clinical and consumer sources say penile growth follows puberty and is essentially finished by the late teens to early twenties: commonly cited ranges are “by 18–19” (Healthline) and “by the late...

Dec 18, 2025
Most Viewed

What age range do most boys start puberty and show physical signs like erections?

Most authoritative pediatric and endocrine sources place the beginning of male puberty in roughly the 9–14 years window, with population averages clustering around 11–12 years; the very first physical...

Nov 28, 2025
Most Viewed

Which HRT effects are reversible, partially reversible, or irreversible if treatment is stopped, and when do they occur?

Medical and advocacy sources agree that some HRT effects are reversible if treatment is stopped, some are partially or “semi‑reversible,” and some are likely permanent; timing varies from days (mood, ...

Dec 14, 2025

Can a rising PSA level after prostate cancer surgery be a false positive?

A rising PSA after radical prostatectomy usually signals remaining prostate tissue—most often recurrent cancer—but timing and test sensitivity matter: guidelines and studies warn that PSA can persist ...

Nov 30, 2025

How much can prostatitis elevate PSA levels compared with prostate cancer?

Prostatitis commonly raises PSA but usually to modest levels: in one clinical series, 71% of acute prostatitis cases had PSA >4 ng/mL, while chronic prostatitis less often produced >4 ng/mL (15% bacte...

Nov 15, 2025

How much rectal bleeding is considered dangerous and when to seek ER care?

Small amounts of bright-red blood on the toilet paper or a little blood in the stool are often caused by benign problems like hemorrhoids or anal fissures, but persistent bleeding, large-volume loss, ...

Dec 2, 2025

What side effects or risks are associated with long-term bacopa monnieri use?

Clinical and review sources portray long‑term Bacopa monnieri use as generally well tolerated but repeatedly linked to gastrointestinal complaints (nausea, diarrhea, abdominal cramping), occasional fa...

Dec 8, 2025

What are the safe dosing ranges and administration routes for low-dose methylene blue?

Therapeutic methylene blue for methemoglobinemia is dosed at 1 mg/kg IV (may repeat once after 1 hour) with product labels and reviews warning not to exceed about 2 mg/kg as routine therapy because ad...

Nov 11, 2025

What is the normal semen volume range for men?

Clinical references are consistent that , but published “normal” ranges vary: major clinical guidelines set a lower threshold near , while other clinical and patient-facing resources report broader ra...

Dec 2, 2025

How do clinical prostate exam techniques (DRE) compare to sexual prostate stimulation methods?

Clinical digital rectal examination (DRE) is a brief, trained physical exam to feel prostate size, nodules and firmness; it can transiently raise PSA so guidelines advise waiting ~3 days before PSA bl...

Jan 16, 2026

What are the Tanner stages and how do they map to specific ages in boys?

The Tanner stages—also called Sexual Maturity Ratings (SMRs)—are a five-point clinical scale clinicians use to describe the visible progression of secondary sexual characteristics during puberty rathe...

Dec 11, 2025

Can a patient with undetectable PSA levels after prostatectomy still develop metastatic prostate cancer?

Yes — multiple case series and clinical reports show that metastatic prostate cancer can occur despite an undetectable PSA after prostatectomy, although it is uncommon and often linked to specific tum...

Nov 24, 2025

How much rectal bleeding is considered a medical emergency?

Significant rectal bleeding becomes an emergency when it causes hemodynamic instability (fainting, dizziness, low blood pressure, rapid heart rate) or is large/continuous enough to risk major blood lo...

Jan 17, 2026

How do medical organizations recommend treating tear gas exposure in the field?

Medical organizations and public-health authorities converge on a simple, evidence‑based field protocol: stop the exposure, move to fresh air, remove contaminated clothing, and wash thoroughly (especi...

Dec 16, 2025

How common is urinary or fecal incontinence in men aged 78 and older?

Studies and reviews report that urinary and fecal incontinence become substantially more common with advancing age: population and review articles show prevalence rising in people 75+ and in frail old...

Dec 12, 2025

Is folic acid synthetic

Folic acid is the laboratory-made, synthetic form of vitamin B9 (folate); major health authorities and medical summaries state this plainly and note it is widely used in supplements and food fortifica...

Dec 12, 2025

Which prescription drugs have dangerous interactions with methylene blue?

Methylene blue causes dangerous interactions chiefly by inhibiting monoamine oxidase A (MAO‑A), risking serotonin syndrome when combined with serotonergic drugs (SSRIs, SNRIs, TCAs, some opioids, trip...

Dec 8, 2025

What is the recommended kegel routine for increasing orgasm strength safely?

Kegel (pelvic‑floor) exercises are widely recommended to strengthen pelvic muscles and are associated in multiple clinical reviews and health sources with improved orgasmic function and ejaculation co...

Nov 30, 2025

When should antibiotics be given before repeating PSA to rule out prostatitis?

Most expert reviews and guidelines say routine empiric antibiotics to “normalize” a raised PSA are unsupported and unnecessary; when antibiotics are used, clinicians typically wait 2–8 weeks before re...

Nov 20, 2025

What are safer alternatives for treating human skin parasites?

There are multiple safer, non-systemic or non‑neurotoxic alternatives to traditional systemic antiparasitic drugs for skin parasites — including topical agents (permethrin, dimeticones), physical trea...