What to know about types of penises

As with any body part, no two people have the same penis. Penises can vary in features, such as length, girth, and curvature.
The penis is a male organ with functions that include reproduction and urination. It has two main features. The body, or shaft, connects the penis to the abdomen. At the opposite end of the shaft is the glans, or head.
This article lists some common types of penises, which it primarily classifies by measurement, and provides some related information.
Sex and gender exist on spectrums. This article will use the terms “male,” “female,” or both to refer to sex assigned at birth. Click here to learn more.
Click here to learn more
Length
Share on Pinterest
Penises come in different lengths when flaccid or erect.
According to a small study from 2018, about 26% of penises are “growers,” which means they expand significantly in length when erect from a flaccid state. In comparison, about 74% of penises are “showers,” which means they do not expand significantly in length when erect from a flaccid state.
about 26%
Estimates about average penis length can vary. For example, an older study looked at the penis size of males in the United States. It found that the average erect length was around 5.6 inches.
average penis length
older study
Additionally, a 2023 systematic review and meta-analysis found that, worldwide, the average erect penis length was around 5.5 inches. It also indicated that average erect penis length has increased by 24% across the world over the past 29 years.
around 5.5 inches
However, another 2021 article suggests there are issues with many penis length studies, including the fact that participants self-report measurements.
2021 article
These studies use self-reported data and are therefore subject to bias, which likely fuels the widespread belief that the average penis size is closer to 6 inches. In reality, the average is likely to be lower.
Girth
Share on Pinterest
Penises also have different girths or circumferences. Depending on the individual, they may be thinner or thicker in appearance.
thinner
An older 2014 study into the penis size of males in the United States found that the average erect girth was around 4.8 inches.
around 4.8 inches
However, as with penis length, a person needs to note that many penis girth studies use self-reported measurements, which are known to be fairly unreliable.
Curvature
Some penises are completely straight when erect, though many have a bend or curvature. There are three main types of curved penis. These include penises that:
curve upward from its base
curve downward from its base
curve to the left or right
Additionally, some people may have multiple kinds of curvature. For instance, some penises may curve to the left and upward.
Penile curvatures are common and typically benign. They are rarely painful and do not usually make penetrative sex more difficult.
However, atypical penile curvature can sometimes be a symptom of Peyronie’s disease. Some possible symptoms of this condition include:
Peyronie’s disease
possible symptoms
a thickened area, or plaque, in the penile shaft
curvature of the penis during erection
pain in the penis
pain in the penis
erectile dysfunction
erectile dysfunction
Scientists are not sure exactly what causes Peyronie’s disease.
However, one possible explanation is that the condition results from mild, recurring trauma to the penis. This can occur during intercourse or masturbation. It may also happen during sports or other accidents.
Peyronie’s disease can also be due to a rupture in the penis, known as a penile fracture.
penile fracture
People with autoimmune diseases may also develop Peyronie’s disease if the immune system mistakenly attacks cells in the penis.
autoimmune diseases
develop
immune system
Anybody who suspects they may have Peyronie’s disease needs to seek medical advice. Sometimes, people with the condition who experience no other issues, such as pain, can still use their penis for sexual activity without needing medical treatment.
In some cases, doctors may recommend surgery to remove the plaque or reduce the curvature in the penis.
The base to head ratio
For some people, the circumference of the base of their penile shaft is the same as the circumference of their penile head.
For others, this ratio is different. Some may have a penile head with more girth than the base of their shaft, or vice versa.
Circumcised and uncircumcised
A person with a penis is born with a retractable layer of skin that covers the penile head, which people commonly refer to as the foreskin.
Many people around the world have undergone surgical removal of their foreskin, in a process known as male circumcision.
circumcision
A trained person may carry out male circumcision on children and adults, often for cultural or religious reasons. Doctors can also perform them in medical treatments.
may carry out
Circumcised penises do not have a foreskin, which means that the glans is always visible. Uncircumcised penises have a foreskin, which often covers the glans, especially when the penis is flaccid.
Circumcised penises
Some infants can be born without a foreskin, which is a condition called hypospadias. Here, the opening of the penis is not at the tip. Surgery is usually necessary to correct this issue.
hypospadias
Uncircumcised males can also develop phimosis, where the foreskin cannot retract over the hood of the glans. This can lead to irritation and infection. People with the condition generally require medical circumcision.
phimosis
infection
Because circumcision is a surgical process, it can sometimes lead to health issues, including:
infection
necrosis, or tissue death, of the penile head
cut to the penile head or urethra, which is the tube through which urine leaves the body
penile loss
However, people need to note that this procedure is very common. According to Seattle Children’s Hospital, infections following circumcision, one of the most common possible complications, affect just 0.5% of people.
common
0.5%
Other aspects of appearance
Penises also vary in other ways, for example:
Hair: Most males have pubic hair around the base of the penis and testicles unless they choose to shave the area. Hair can also grow on the shaft of the penis.
pubic hair
Veins: Some penises may have visible veins, particularly while erect, while others may have a smoother appearance.
Veins
Color: Penis color varies between individuals, and a person’s penis may be a different color from the rest of the skin. It may also vary in color while erect due to blood flow.
Summary
Many internet sources misinform and perpetuate myths about penises. In reality, they are highly varied, just like other body parts, with varying lengths, girths, and curvatures.
Anyone who has concerns about their penis can seek medical advice from a trained professional.