Evidence-Based Male Sexual Health
Evidence-based male sexual health. Size data, erection physiology, ED treatment, enhancement methods, and product reviews — all backed by peer-reviewed research.
Quick Stats
- Average erect length: 13.12 cm (5.17") — Veale et al. 2015, BJU Int. Erect length: n=692. Total across all measures: up to 15,521.
- Average erect girth: 11.66 cm (4.59")
- Average flaccid length: 9.16 cm (3.61")
Explore
- What Hurts Your Size & Quality — Things making your penis smaller, weaker, or both — backed by research
- How to Get Bigger — Every method ranked by evidence — traction, surgery, fillers, and what does NOT work
- Erection Science — The complete molecular cascade from NO to cGMP to rigid erection — and how drugs work
- Erectile Dysfunction — 52% of men experience ED — it's treatable and may be warning you about your heart
- Size Data & Statistics — Meta-analyses of 50,000+ clinician-measured men — percentiles, regional data, development
- Myth Busters — Debunking the most persistent myths about penis size with clinical evidence
- Fact or Fiction Quiz — Test your knowledge — can you separate fact from fiction?
- Product Reviews — Evidence-based product reviews — traction devices, pumps, supplements