The Erect Penis

Penis size, shape and angle in pictures

There is no such thing as an average penis: every variation of form and structure is represented in the male population. These pictures illustrate some of the variations in erections - all of which are "normal".

All pictures from Images of Size, a pictorial guide to penis size.

Erection with penile shaft bending or leaning to left or right

Statistics reveal how often erect penises lean or bend to one side:

Looking from the front

% of penises 

Curve/bend/lean left

Straight  85.2
Curve/bend/lean right 1.2

All statistics taken from The Penis Website

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Erection with straight penile shaft

penis penis penis retractile testiclesshape13.jpg (13691 bytes) angle of erection

Erection with penis shaft bending up or down

Statistics show the following frequency of an erection curving up or down:

Looking from the side

% of penises

Curve upwards




Curve downwards


testicles penis penis penis penis erection angle bent penis bent penis

It's questionable at what point a bend becomes so great that it is no longer part of "normal" variation. Certainly the last 2 penises pictured seems to have a more acute bend that may be Peyronie's disease.

Erection leans or bends both up or down and to one side

Some penises do more than one of these things! About 2.5% bend left and curve up. About 7.4% bend left and look straight from the side. And about 3.7% bend left and curve down. And just a few bend to the right and curve up or down. 

penis erection erection

Angle of erect penile shaft varies from downwards to upright when  man is standing or sitting

As a generality, the smaller the penis and the younger the man, the harder and more upright will be his erection. This may limit the number of sexual positions a man is able to enjoy; for example, the rear entry sexual position may not be practical if a man's erection stands hard up against his belly. The more upright the erection, the less flexible the base of the penis at the point where it enters the body cavity. Such flexibility can allow greater ease of movements during intercourse.

Imagine a man standing upright with an erection. If his erection were vertically upright, that would be 0 degrees from the vertical. If it were pointing straight out in front of him, that would be 90 degrees from the vertical, and if it were hanging down and pointing at the floor, that would be 180 degrees from the vertical. The statistics for the whole population are:

Angle down from vertical

% of penises

Cumulative %

0 - 30 degrees



30 - 60 degrees



60 - 85 degrees



85 - 95 degrees (around horizontal)



95 - 120 degrees



120 - 180 degrees



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Shaft of penis twists along its length on erection

A twist along the length of the shaft is less common than a simple bend or lean to one side on erection, but it is still common enough not to be considered abnormal. A twist in the shaft may also be associated with hypospadias.

125.jpg (11278 bytes) hypospadias peyronies


Bends in shaft

Such bends are often the result of injury, frequently sustained during intercourse without the man being aware of it. Even very brief pain may indicate underlying damage that only manifest weeks or months later in penile bending or twisting as shown below. Such injuries may induce Peyronie's disease.

bent penis testicles


Twisting of head in relation to penis shaft

1 Erect

The twist of the shaft on erection is a common anomaly. Estimates suggest between 3 and 5% of men have some degree of twisting.

penis rotation of penis head on shaft rotate glans of penis

2 Flaccid

The twist illustrated below is associated with hypospadias, though such an anomaly may occur without hypospadias being present. In this penis, the raphe runs at an angle down the length of the penile shaft, representing the true midline of the shaft. The urethral meatus is apparently displaced to one side.

twist in shaft of penis twist in shaft of penis

Advice on various forms of male sexual dysfunction can be found here - and here (click here). That advice includes premature and delayed ejaculation difficulties.

Penis Size Facts and Fiction
Erect penis size, shape & angle in pictures
The foreskin & circumcision
Penile shaft & glans variations
From soft to erect in thirty seconds
Other penile variations
Hypospadias and Epispadias
Peyronie's Disease
Penis problems support groups
Penis size 1
The testicles, or testes, and scrotum in pictures
Premature orgasm in men
Delayed Ejaculation
The Law Of Attraction

Sexual issues
Sex in midlife
Sexual matters
Sexually transmitted diseases

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