Clitoromegaly (or macroclitoris) is an abnormal enlargement of the
clitoris
The clitoris ( or ) is a female sex organ present in mammals, ostriches and a limited number of other animals. In humans, the visible portion – the glans – is at the front junction of the labia minora (inner lips), above the o ...
that is mostly
congenital
A birth defect, also known as a congenital disorder, is an abnormal condition that is present at birth regardless of its cause. Birth defects may result in disabilities that may be physical, intellectual, or developmental. The disabilities c ...
or acquired, though
deliberately induced clitoris enlargement as a form of genital
body modification is achieved through various uses of anabolic steroids, including
testosterone
Testosterone is the primary sex hormone and anabolic steroid in males. In humans, testosterone plays a key role in the development of male reproductive tissues such as testes and prostate, as well as promoting secondary sexual characteris ...
.
Clitoromegaly is not the same as normal enlargement of the clitoris seen during
sexual arousal.
Presentation
The different grade of genital ambiguity is commonly measured by the
Prader classification, which ranges, in ascending order of masculinisation, from 1: ''female external genitalia with clitoromegaly'' through 5: ''pseudo-phallus looking like normal male external genitalia''.
Causes
Clitoromegaly is a rare condition and can be either present by birth or acquired later in life.
If present at birth,
congenital adrenal hyperplasia can be one of the causes, since in this condition the adrenal gland of the female fetus produces additional androgens and the newborn baby has ambiguous genitalia which are not clearly male or female. In pregnant women who received
norethisterone
Norethisterone, also known as norethindrone and sold under many brand names, is a progestin medication used in birth control pills, menopausal hormone therapy, and for the treatment of gynecological disorders. The medication is available in ...
during pregnancy, masculinization of the fetus occurs, resulting in hypertrophy of the clitoris; however, this is rarely seen nowadays due to use of safer
progestogens. It can also be caused by the
autosomal
An autosome is any chromosome that is not a sex chromosome. The members of an autosome pair in a diploid cell have the same morphology, unlike those in allosomal (sex chromosome) pairs, which may have different structures. The DNA in autosomes ...
recessive
In genetics, dominance is the phenomenon of one variant (allele) of a gene on a chromosome masking or overriding the effect of a different variant of the same gene on the other copy of the chromosome. The first variant is termed dominant and ...
congenital disorder known as
Fraser syndrome.
In acquired clitoromegaly, the main cause is endocrine hormonal imbalance affecting the adult person, including
polycystic ovarian syndrome (PCOS) and
hyperthecosis. Acquired clitoromegaly may also be caused by pathologies affecting the ovaries and other
endocrine glands. These pathologies may include virulent (such as
arrhenoblastoma) and
neurofibromatosic tumors.
Another cause is clitoral cysts. Sometimes there may be no obvious clinical or hormonal reason.
Female bodybuilders and athletes who use
androgen
An androgen (from Greek ''andr-'', the stem of the word meaning "man") is any natural or synthetic steroid hormone that regulates the development and maintenance of male characteristics in vertebrates by binding to androgen receptors. This in ...
s, primarily to enhance muscular growth, strength and appearance , may also experience clearly evident enlargement of the clitoris and increases in
libido
Libido (; colloquial: sex drive) is a person's overall sexual drive or desire for sexual activity. Libido is influenced by biological, psychological, and social factors. Biologically, the sex hormones and associated neurotransmitters that act ...
.
For transgender men taking testosterone as part of
transgender hormone therapy (female-to-male) masculinization of the clitoris may be a desired effect. Women who use testosterone for therapeutic reasons (treating low libido, averting
osteoporosis, as part of an anti-depressant regimen, etc.) may experience some enlargement of the clitoris, although the dosages warranted for these conditions are much lower. Pseudoclitoromegaly or pseudohypertrophy of the clitoris "has been reported in small girls due to masturbation: manipulations of the skin of prepuce leads to repeated mechanical trauma, which expands the prepuce and labia minora, thus imitating true clitoral enlargement".
Anatomy
In ''Atlas of Human Sex Anatomy'' (1949) by
Robert Latou Dickinson
Robert Latou Dickinson (1861–1950) was an American obstetrician and gynecologist, surgeon, maternal health educator, artist, sculptor and medical illustrator, and research scientist.
Early life
Robert Latou Dickinson was born on February 21 ...
, the ''typical'' clitoris is defined as having a crosswise width of 3 to 4 mm (0.12 - 0.16 inches) and a lengthwise width of 4 to 5 mm (0.16 - 0.20 inches). On the other hand, in obstetrics and gynecology medical literature, a frequent definition of clitoromegaly is when there is a clitoral index (product of lengthwise and crosswise widths) of greater than 35 mm
2 (0.05 inches
2), which is almost twice the size given above for an ''average'' sized clitoris.
Human rights concerns
Early surgical reduction of clitoromegaly via full or partial
clitoridectomy is controversial, and
intersex
Intersex people are individuals born with any of several sex characteristics including chromosome patterns, gonads, or genitals that, according to the Office of the United Nations High Commissioner for Human Rights, "do not fit typical b ...
people exposed to such treatment have spoken of their loss of physical sensation, and loss of autonomy. In recent years, human rights institutions have criticized early surgical management of such characteristics.
In 2013, it was disclosed in a medical journal that four unnamed elite female athletes from developing countries were subjected to gonadectomies and partial clitoridectomies after
testosterone testing revealed that they had an intersex condition.
In April 2016, the
United Nations Special Rapporteur on health, Dainius Pūras, condemned this treatment as a form of
female genital mutilation
Female genital mutilation (FGM), also known as female genital cutting, female genital mutilation/cutting (FGM/C) and female circumcision, is the ritual cutting or removal of some or all of the external female genitalia. The practice is found ...
"in the absence of symptoms or health issues warranting those procedures."
See also
*
Pseudo-penis, an enlarged clitoris or other penis-like structure that is normally present in some mammal, bird, and insect species
References
External links
{{Congenital malformations of genital organs and urinary system
Congenital disorders of female genital organs
Megaly
Intersex variations