can a person increase his penile length
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penile lengthening enlargement methods evidence
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PMID: 32575166
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PMID: 18760874
Here is a thorough, evidence-based answer:
Can a Person Increase Penile Length?
The short answer is: modest increases are possible through certain methods, but no technique is reliably effective, risk-free, or widely recommended for men with normal anatomy. Here is what the evidence actually shows, broken down by method.
1. Penile Traction Devices (Extenders)
This is the most evidence-supported non-invasive method. Traction devices apply a slow, sustained stretch to the penis over weeks to months.
- Systematic review evidence (BJU Int, 2021 - Romero-Otero et al.) confirms traction therapy is safe and mostly efficacious among non-invasive interventions.
- In clinical trials on men with Peyronie's disease (penile curvature), traction reduced deformity progression and actually preserved or slightly increased stretched flaccid length - Campbell-Walsh Urology notes traction can "reduce length loss and even enhance length gain."
- For healthy men, reported gains are typically 1-2 cm in flaccid length with consistent daily use (several hours/day) over 3-6 months. Erect length gains are smaller and less consistent.
- These gains are real but modest, and the quality of studies is still rated as low.
2. Surgical Options
Surgery is the only approach capable of producing more substantial changes, but comes with serious caveats.
- Suspensory ligament release (lengthening): Cutting the ligament that anchors the penis to the pubic bone allows more of the internal penile shaft to hang externally. This can produce 1-2 cm of visible flaccid length gain - but does not increase erect length, and the penis loses its upward angle during erection, which many men find unsatisfying.
- Fat or filler injection (girth augmentation): Can temporarily increase girth. Major complications include granuloma formation, migration of injected material, penile deformity, and sexual dysfunction.
- The 2008 systematic review in European Urology (Vardi et al.) concluded: "patients should be discouraged from undergoing these invasive treatments" due to unacceptably high complication rates and poor patient satisfaction in the long term.
3. Pills, Pumps, and Exercises ("Jelqing")
- Pills and supplements: No credible clinical evidence supports any oral supplement increasing penile length. These are not regulated, and claims are not substantiated.
- Vacuum pumps: Designed for erectile dysfunction, not permanent enlargement. Any engorgement is temporary.
- Jelqing (manual stretching exercises): No peer-reviewed data support lasting length increases. Can cause bruising, nerve damage, or Peyronie's disease if done aggressively.
4. The Psychological Dimension
Most men who seek penile enhancement have normal-sized penises but suffer from penile dysmorphophobia - a distorted perception of their own anatomy. Studies consistently show that:
- Average erect penile length is approximately 12-16 cm (4.7-6.3 inches)
- Most men who request surgery are within the normal range
- Psychological counseling is recommended first, as satisfaction rates after surgery are disappointingly low
Summary Table
| Method | Evidence Quality | Avg. Gain | Risks |
|---|---|---|---|
| Traction device | Low-moderate | ~1-2 cm flaccid | Minimal if used correctly |
| Suspensory ligament surgery | Low | ~1-2 cm flaccid | Loss of erection angle, complications |
| Fat/filler injection | Low | Variable girth | High - migration, deformity |
| Pills/supplements | None | 0 | Unregulated, misleading |
| Jelqing | None | 0 | Bruising, nerve damage, Peyronie's |
Bottom Line
The 2021 BJU International systematic review (Romero-Otero et al.) summarizes the field well: the overall quality of evidence is low, and no procedure can be recommended based on strong scientific evidence. For men bothered by their size, the first step should be a conversation with a urologist and/or a mental health professional, not a procedure.
how to calculate your penile length
How to Measure Penile Length
This is a standard clinical measurement used in urology research and practice. There are two accepted measurements:
1. Stretched Penile Length (SPL) — Most Common Clinical Method
This is the standard used in most medical studies because it closely correlates with erect length.
Steps:
- Stand or lie down in a warm room (cold causes retraction and gives falsely short readings)
- The penis should be flaccid (not erect)
- Gently stretch the penis outward to its maximum comfortable length
- Place a rigid ruler (not flexible tape) flat against the pubic bone at the base - press firmly enough to compress the pubic fat pad
- Measure from the pubic bone to the tip of the glans (the head), not including the foreskin if present
- Do not measure along the underside or at an angle
2. Erect Penile Length (EL)
Steps:
- Achieve a full erection
- Place a rigid ruler against the top side (dorsal surface) of the penis, pressed firmly against the pubic bone
- Measure from the pubic bone to the tip of the glans
- Always measure the dorsal (top) side - the underside (urethral side) is longer due to the curve and gives inflated readings
Key Points for Accurate Measurement
| Factor | Why It Matters |
|---|---|
| Press ruler to pubic bone | Accounts for fat pad - this is the true anatomical length |
| Use a rigid ruler | Flexible tape conforms to curves and overestimates |
| Warm environment | Cold causes significant retraction |
| Measure top side only | Underside measurement is longer and not the standard |
| No foreskin included | Measure to the tip of the glans, not the foreskin |
What Is "Normal"?
Based on a large 2015 meta-analysis published in BJU International analyzing 15,521 men:
- Flaccid length: 9.16 cm (3.6 in) average
- Stretched flaccid length: 13.24 cm (5.2 in) average
- Erect length: 13.12 cm (5.2 in) average
- Erect girth (circumference): 11.66 cm (4.6 in) average
The vast majority of men fall within the normal range. Clinically, a penis is only considered unusually small ("micropenis") if the stretched penile length is below 7 cm (2.75 in) in an adult male - which is a rare medical condition.
The stretched penile length method (SPL) is the one used in clinical studies and urological practice because it is reproducible and does not require an erection.
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