It's natural to wonder about the timing of penis growth. Typically, growth begins during puberty, often starting around age 12, and continues until the late teenage years or early twenties, usually concluding between 18 and 21 years old. Every person is different, and penis size and shape vary widely. As long as there are no issues with functions like urination or sexual activity, variations in size are generally not a cause for concern.

When Penis Growth Starts and Ends

Penile development kicks off with puberty, which usually begins between ages 9 and 14 for those assigned male at birth. Puberty marks the body's shift into sexual maturity, driven by a surge in testosterone. This hormone prompts various changes, including height increases, changes in body composition, and the appearance of secondary sexual features like facial and body hair.

One of the first visible signs is the growth of the testicles. The scrotum darkens, becomes looser, and develops hair follicles. It's normal for one testicle to hang lower than the other.

About a year after testicles start growing, the penis begins to lengthen. Growth tends to happen in spurts, with periods of rapid increase followed by slower growth. The penis first lengthens, then thickens as puberty progresses, typically wrapping up between ages 18 and 21. Other changes happening during this time include:

  • Acne outbreaks

  • Frequent and sometimes unexpected erections

  • Wet dreams (nocturnal emissions)

  • Body and facial hair development

  • Deeper voice following a growth spurt

  • Muscle mass increases

Average Penis Size

Penis size is influenced by genetics and hormone levels, meaning there's a broad range considered normal. Studies show the following averages:

  • Length:

    • Erect: 5.1 inches

    • Flaccid: 3.6 inches

    • Stretched: 5.2 inches

  • Circumference (Girth):

    • Erect: 4.5 inches

    • Flaccid: 3.6 inches

To measure, place the measuring tape at the base (near the pubic bone) and extend it to the tip. For girth, wrap the tape around the widest part of the shaft.

Is It Possible To Increase Penis Size?

While some medical and surgical procedures exist to enhance penis size, solid scientific evidence supporting their effectiveness is limited. Over-the-counter products like pills, creams, and exercises generally do not deliver proven results.

Devices like vacuum pumps can assist with erections for those with erectile dysfunction but won't permanently enlarge the penis. Some traction devices may show mild improvements when used consistently over months, but results vary, and discomfort is common.

Medical procedures that may increase size include:

  • Fat injections

  • Filler injections (like hyaluronic acid)

  • Grafting surgeries using skin or fat

  • Silicone implants (e.g., Penuma implant)

These methods carry risks such as infection, deformities, and loss of function. They should only be performed by experienced urologists.

Risks and Psychological Considerations

Surgical or medical interventions come with potential dangers. Complications can include sexual dysfunction, infections, scarring, and even significant disfigurement.

Moreover, psychological issues like small penis anxiety (SPA) or penile dysmorphic disorder (PDD) can affect mental well-being. Research shows many men worry about their size despite being within normal ranges, while most partners are satisfied. When size concerns cause significant stress, professional mental health support may be necessary.

Tips To Enhance Appearance

Without surgery, you can:

  • Trim or remove pubic hair to make the penis appear larger.

  • Practice good posture, which can affect the body's overall appearance.

Does Size Really Matter?

Ultimately, penis size has little to do with sexual satisfaction, attractiveness, masculinity, or fertility. Functional issues, not size, are the primary concern for healthcare providers. If you experience difficulties with urination, erections, or reproduction, consult a urologist for evaluation.

Summary

Penis growth typically starts during puberty, around age 9-14, and finishes between ages 18 and 21. The average erect penis length is about 5.1 inches, but there is a wide range of normal sizes. While surgical options exist, they come with risks and should only be pursued under expert medical supervision. Remember: in most cases, size is less important than healthy, functional anatomy.