Penile size differs between men of different ethnic backgrounds and
large studies of penis girth and length have been conducted by condom
manufacturers. What many men perceive as a short penis actually falls
into normal range size. Based on many published charts, scientific
articles, and self reported web based surveys, 95 % of caucasian men
will fall into one of the following categories of size:
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Average length of flaccid penis is between 3.4 inches and 3.7 inches (8.6 cm and 9.3 cm)
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Average length of erect penis is between 5.1 inches and 5.7 inches (12.9 cm and 14.5 cm)
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Average circumference of an erect penis is between 3.5 inches and 3.9 inches (8.8 cm and 10.0 cm)
Shortening of the penis can be a result of weight gain and the
deposition of fat pubic area. This results in the visual shortening of
penis. Obesity increases the risk of erectile dysfunction and heavy men
who complain of loss of length may simply have inadequate blood flow to
achieve adequate rigidity.
Less common reasons for shortening of the penis are inborn defects in
response to a male hormone (testosterone), congenital cordae (tethering
of penis), chromosomal abnormalities (rare), or a scar from Peyronie's
disease (development of scars – plaques in the penis). Penile length may
slightly decrease with age because of atrophy related to a decrease in
testosterone level and the decreased frequency of erections. Prostate
surgery may also damage the nerves and result in shortening of the
penis. Thus, men who are concerned about penile size should be fully
evaluated by a urologist specializing in sexual medicine, to exclude
medical reasons for a change in penile size.
From our experience, a majority of men who are concerned about
penile size are younger men in their late teens, 20s and early 30s, and men
older than 60.
There is no "one for all" approach to evaluate and manage men concerned
about penile size. However, if penile size and a decrease in girth is
caused by a variant of Peyronie's disease, a so called "hour glass
deformity", it can be successfully treated in specialized centers. A
decrease in length of the penis after prostate surgery is managed by
increasing the frequency of sexual interactions, corrections of
underlying hormonal problems, and supplementation with antioxidants as
shortening of the penis after prostatectomy is believed to be secondary
to "free radicals", an active damaging form of oxygen which is produced
in any part of the body after nerve injury.
Surgical management of a short penis is limited to liposuction and
transposition of scrotal skin in men with abnormal position of the
penis. Cutting the suspensory ligament with a traction system has been
used in some centers to elongate the penis, however it is not a commonly
performed procedure as its effectiveness is questionable in most cases,
and the effects depend on accurate patient selection and lack of any
postoperative scarring. Fat injection, fat flaps, and silicon injections
have all been tried to increase girth of penis. Fat injections last
temporarily as most adipose (fat) cells dissolve. Fat flaps have been
described as a successful method of increasing girth and is occasionally
performed in reconstructive surgery. Injection of silicon has often
been disastrous with an uneven, "bumpy" surface of the penis, erosion
through skin, and scarring of subcutaneous tissue.
Three common "home" methods are used to elongate the penis without medical supervision or proof of effectiveness:
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penile tape (also used in foreskin restoration)
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penile weight system
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penile stretching using a controlled stretch device.
All are based on the assumption that by applying a pulling force on the
penis, the penile tissues extend and men can achieve 0.25 to 0.75 cm
increase in length.
The penile stretching using adjustable devices like Fastsize has been
used in the treatment of Peyronie's disease (curvature of penis).
Results of a study published in the Journal of Sexual Medicine showed a
mild increase in penis length after daily use of Fastsize for treatment
of Peyronie's disease. Subjectively, all men noted reduced curvature
estimated at 10–40 degrees, increased penile length (1–2.5 cm), and
enhanced girth in areas of indentation or narrowing. Objective measures
demonstrated reduced curvature in all men from 10–45 degrees; average
reduction for the group was 33% (51–34 degrees). There were no adverse
events including skin changes, ulcerations, hypoesthesia, or diminished
rigidity. When supervised by a urologist with a sexual medicine
specialty, the stretching method using FastSize may be safe. However,
the unsupervised stretching treatment has resulted in bruising of the
penis, vein thrombosis, and damage to nerves of the penis, especially if
weights are used.
Many web sites promote and sell devices, herbal preparations, and
instructional DVDs for penile enlargement. We have reviewed some of the
sites and it is almost universal that the pictures taken before
treatment are taken with semi rigid penises. The trained eye of a sexual
medicine specialist can recognize the arousal and rigidity of penises
in pictures without much of difficulty, and we have not seen the
convincing photographic documentation that those devices provide
significant benefit.
The no-device self-exercise method recommends stretching the penis with
the hand for extended times during day. However, no medical literature
is available to suggest that this is an effective method of penile
elongation.
Jelqing (jelq) is a type of exercise to
increase girth of the penis by
increasing positive pressure in the penis. By rolling the fingers from
the base of the penis toward the head with the penis mostly rigid, the
blood flow pushes on the side of penis and is supposed to stretch the
tissues. This technique, in principle, is a modification of an old
technique of the penile vacuum device (penile pump), where, by placing
the cylinder on the penis and by creating negative pressure, the tissues
get expanded. There are not medical studies evaluating the
effectiveness of either jelqing or the penile pump to increase girth of
the penis. The penile pump is occasionally used in our practice as part
of the treatment of an hour glass deformity (narrowing of penis shaft).
It is always combined with other medications and performed after an
evaluation and training by a urologist.
Penis size is an import issue for many men and men of all ages are concerned about length and thickness of their penises.
Penile growth and development is a complex process regulated by genes,
hormones, and enviromental factors. As with any health concern, men who
are worried about their penis size should consult with a urologist
trained in
sexual medicine.