No Pubic Hair: Causes & Reasons

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Possible Causes for No Pubic Hair

Hidrotic Ectodermal Dysplasia

absent eyebrows short, thin, sparse, pale scalp hair short, sparse eyelashes sparse axillary and pubic hair Clinical features from OMIM: 601375 Human phenotypes related [malacards.org]

Little underarm hair 0002215 Sparse pubic hair Decreased sexual hair 0002225 Sparse scalp hair Scalp hair, thinning Sparse, thin scalp hair sparse-absent scalp hair [ more [rarediseases.info.nih.gov]

patchy, and pale Slow hair growth Partial scalp hair loss may progress to complete hair loss Eyebrows, eyelashes, body and pubic hair may be partially or completely absent [symptoma.com]

Oculo-Osteo-Cutaneous Syndrome

Symptoms via clinical synopsis from OMIM: 57 Head And Neck Ears: low-set ears Growth Height: short stature Skin Nails Hair Hair: absent axillary hair absent pubic hair thin [malacards.org]

Absent pubic hair MedGen UID: 349155 • Concept ID: C1859391 • Finding Absence of pubic hair. [ncbi.nlm.nih.gov]

eyebrows and eyelashes; progressive hair loss; alopecia; pilli torti Sparse and slow growing scalp hair; sparse eyebrows and eyelashes, sparse to absent armpit and pubic [docksci.com]

Hypogonadism

hair; anemia; and changes in mood and vitality. [jamanetwork.com]

They control testicular development, sperm production, growth of pubic hair and masculine features in men; and pubic hair, breast development, menstruation and feminine features [epainassist.com]

Sex hormones help control secondary sex characteristics, including breast development in women, testicular development in men, and pubic hair growth in both sexes. [healthline.com]

Atrophic Vaginitis

Along with dry labia, vulvar lesions and sparse pubic hair are common. The vaginal epithelium may appear pale, smooth, dry, and friable, with a loss of rugae. [medscape.com]

Use a hand mirror to check for tell tale signs of atrophic vaginitis Sparse pubic hair Dry labia Lesions on the vulva Vaginal walls are pale and dry with areas of patchy redness [holditsister.com]

External genitalia should be examined for diminished elasticity, turgor of skin, sparsity of pubic hair, dryness of labia, vulvar dermatoses, vulvar lesions and fusion of [aafp.org]

Central Precocious Puberty

Patients with pubic hair at diagnosis were found to have an increased risk of subnormal GV (p=0.016). [ncbi.nlm.nih.gov]

Sexual maturity rating: tanner score of pubic hair stage 3, genitalia stage 2. Testicular volume 4 mL on right side, with the left side being 3 mL. [ncbi.nlm.nih.gov]

hair in conjunction with high baseline and peak LH and advanced BA and excessive LH suppression on follow-up. [ncbi.nlm.nih.gov]

Adrenogenital Syndrome

Males may show sexual precocity, with development of the reproductive organs, appearance of pubic hair, and excessive body growth in early childhood. [medical-dictionary.thefreedictionary.com]

Klinefelter Syndrome

Physical examination revealed tall stature, thin built, small testes size, and absence of beard and pubic hairs. [ncbi.nlm.nih.gov]

A physical examination revealed small testes and thin pubic hair, laboratory examination found high luteinizing hormone (LH) and follicle stimulating hormone (FSH) levels [ncbi.nlm.nih.gov]

(sparse facial, armpit, and pubic hair). - Atrophic testis and small penis. [pathopedia-india.com]

X-Linked Hypogonadotropic Hypogonadism without Anosmia

Scant facial, axillary, and pubic hair may be observed in both genders. [symptoma.com]

Secondary sex characteristics are weakly defined, with nXHH patients having scant facial, axillary, and pubic hair, a relatively small muscle mass, but a higher percentage [symptoma.com]

Sheehan Syndrome

The most common findings on physical examination were absence of axillary hair in 56 (93%) and pubic hair in 56 (93%), dry skin in 49 (82%), and pallor in 42 (70%). [ncbi.nlm.nih.gov]

There was a history of secondary amenorrhoea, loss of axillary and pubic hair following childbirth at 28 years of age. [ncbi.nlm.nih.gov]

hair, decrease in skin pigmentation) Weakness Fatigue Dizziness Oligomenorrhea (infrequent menstrual periods) Hot flashes Decreased libido Low blood pressure Slowed mental [de.slideshare.net]

Trichotillomania

Pullers may target any hair including the scalp, eyebrows, eyelashes, pubic hair, etc. Recent estimates are that 1-2% of the US population has TTM. [curlie.org]

Less common areas where trichotillomania occurs includes pulling out facial hair, pulling out hair from your arms, legs, armpits, or pubic hair. [psychcentral.com]

Sometimes the hair that is pulled is localized (hair on one's head; eyebrows; arm or leg hair; pubic hair) and sometimes hair pulling is more generalized. [anxietyannarbor.com]

Luteinizing Hormone Deficiency

facial, or body hair in men No underarm (armpit) and pubic hair in women Underdevelopment of breasts in women Hypogonadism Hypogonadism has essentially the same symptoms [healthhype.com]

Absence of hair in pubic and underarm are in men and women. Women with underdeveloped breast. Impotence in men and lack of desire in female. [tandurust.com]

He had scanty pubic hair which came only after testosterone injection (Tanner stage 2) but no axillary hair. [endocrine-abstracts.org]

Anorchia

[…] may include: Normal outside genitals before puberty Failure to start puberty at the correct time Signs include: Empty scrotum Lack of male sex characteristics (penis and pubic [nlm.nih.gov]

While symptoms are immediately recognizable, later indications might include delayed start of puberty or a lack of secondary sexual characteristics like pubic hair, voice [everything2.com]

Symptoms Normal outside genitals before puberty Failure to start puberty at the correct time and lack of secondary sex characteristics (penis and pubic hair growth, deepening [coordinatedhealth.com]

Hypogonadotropic Hypogonadism Type 22

hair development Initial growth acceleration (8 to 10) Elevation of papilla only; no pubic hair 1 1 Thelarche (9 to 11) See adrenarche for stage 2 development 2 1 Adrenarche [aafp.org]

I was unable to evaluate the distribution of the patient’s pubic hair due to grooming. [healio.com]

[…] and absent facial, axillary and pubic hair. [jpma.org.pk]

Female Infertility due to Anovulation

hair development Initial growth acceleration (8 to 10) Elevation of papilla only; no pubic hair 1 1 Thelarche (9 to 11) See adrenarche for stage 2 development 2 1 Adrenarche [aafp.org]

The elder two sisters had a normal female phenotype and the youngest had amenorrhea with no breast development (B1) and pubic hair. [adc.bmj.com]

Breasts don’t develop, pubic hair is absent, and other puberty signs like enlargement of labia don’t occur, and the girl remains girl-like in appearance. [allthingsvagina.com]

Kallmann Syndrome Type 3

hair development Initial growth acceleration (8 to 10) Elevation of papilla only; no pubic hair 1 1 Thelarche (9 to 11) See adrenarche for stage 2 development 2 1 Adrenarche [aafp.org]

As a result, he had a full-skin exam and was found to have a microphallus, undescended testes, and minimal pubic hair distribution. He had a normal sense of smell. [omicsonline.org]

Sex hormones help control secondary sex characteristics, such as breast development in women, testicular development in men, and pubic hair growth. [healthline.com]

Leydig Cell Hypoplasia due to LHB Deficiency

hair and breasts at puberty, and normal to late menarche followed by oligoamenorrhea and infertility. [ncbi.nlm.nih.gov]

Conversion of testosterone to DHT leads to growth of the external genitalia and pubic hair. [clinicalgate.com]

[…] those of women with hypergonadotropic hypogonadism due to inactivating mutations of the LH receptor: all have female external genitalia, spontaneous development of normal pubic [ncbi.nlm.nih.gov]

Kallmann Syndrome

The authors report a case of a 26-year-old Filipino male who presented with eunuchoid body proportion, absence of facial and axillary hair and sparse pubic hair, micropenis [ncbi.nlm.nih.gov]

After 9 months of treatment by HCG and HMG, the amount of pubic hair and the volume of bilateral testes, as well as the level of testosterone had increased. [ncbi.nlm.nih.gov]

After human chorionic gonadotrophin treatment, the serum testosterone levels were normalized, and the pubic hair, penis length and testicular volumes were greatly improved [ncbi.nlm.nih.gov]

Kallmann Syndrome Type 4

In isolated hypogonadotropic hypogonadism, women typically have Tanner stage I breasts and Tanner stage II-III pubic hair (since pubic hair is controlled in part by adrenal [ijdvl.com]

hair development Initial growth acceleration (8 to 10) Elevation of papilla only; no pubic hair 1 1 Thelarche (9 to 11) See adrenarche for stage 2 development 2 1 Adrenarche [aafp.org]

As a result, he had a full-skin exam and was found to have a microphallus, undescended testes, and minimal pubic hair distribution. He had a normal sense of smell. [omicsonline.org]

Mayer-Rokitansky-Küster-Hauser Syndrome

She had normal breasts, normal axillary and pubic hair, normal vulva, urethra, and labial folds, however, the vagina was blind, approximately 2 cm length. [ncbi.nlm.nih.gov]

She noticed thelarche at the age of 11 years and developed pubic hair at 13 years. [casereports.bmj.com]

Her exam reveals normal female external genitalia and normal breast and pubic hair development. [medbullets.com]

Precocious Puberty

Pubic hair development was observed at an average age of 11.2 (95% CI 10.9 to 11.5) years. [doi.org]

Precocious puberty was identified by Tanner stage of breast, pubic hair and testicle development. A χ 2 test was performed to compare rates. [ncbi.nlm.nih.gov]

Graph represents the prevalence of pubic hair at Tanner stage 2 or greater by age and race. [emedicine.com]

Agenesis of Uterus

Her exam reveals normal female external genitalia and normal breast and pubic hair development. [medbullets.com]

Women with fusion disorders have ovaries that function normally so they develop breasts, vulva, and pubic hair and can get pregnant. [gondracenter.com]

Adrenal androgens may induce production of pubic hair, but patients will have minimal breast development. What Tests Should I Request to Confirm My Clinical Dx? [clinicaladvisor.com]

Virilization

Examination revealed Tanner stage 2 pubic hair and Tanner stage 1 breast development. [ncbi.nlm.nih.gov]

Typical effects of virilization in children are pubic hair, accelerated growth and bone maturation, increased muscle strength, acne, and adult body odor. [en.wikipedia.org]

On examination she had significant facial hirsutism, clitoromegaly, and male pattern pubic hair growth. [ncbi.nlm.nih.gov]

Familial Testotoxicosis

Clinical improvements include decreased facial acne and pubic hair. Most importantly, a marked decrease in growth velocity and skeletal advancement has been achieved. [ncbi.nlm.nih.gov]

Physical examinations have included assessment of penile length, testicular volume and pubic hair. [med.wanfangdata.com.cn]

Clinical description FMPP presents in boys from 2-5 years of age with precocious signs of puberty including growth acceleration, penile enlargement, acne, pubic hair and facial [orpha.net]

Primary Male Hypogonadism

In boys, testosterone replacement therapy (TRT) can stimulate puberty and the development of secondary characteristics, such as increased muscle mass, beard and pubic hair [healthguidance.org]

The doctor will perform a physical exam to ensure your muscle mass, pubic hair and other factors of sexual development are consistent with your age. [performanceinsiders.com]

During puberty, sex hormones help control the development of breasts, testicles and pubic hair. They are also key for menstruation and sperm production. [chop.edu]

Hypopituitarism

Neither axillary nor pubic hair could be traced. Basic studies revealed anaemia, significant hyponatraemia and hypercholesterolaemia. [ncbi.nlm.nih.gov]

Pubic and axillary hair growth is usually normal unless a concomitant ACTH deficiency exists. [emedicine.com]

hair, decreased sex drive, infertility, problems with breast feeding, irregular or no menstrual periods, and hot flashes In men: loss of hair (on the face, or in the armpits [hormone.org]

Congenital Isolated ACTH Deficiency

hair. [en.wikipedia.org]

Affected males may have early pubic hair development, growth acceleration, and advanced bone age. [msdmanuals.com]

hair (in women) Other Signs and Symptoms Hyperpigmentation (primary AI only) [due to excess of pro-opiomelanocortin (POMC)–derived peptides] Alabaster-colored pale skin [slideshare.net]

Congenital Adrenal Hyperplasia due to 21-Hydroxylase Deficiency

A 10-year-old male was referred to our institution due to short stature and bilateral cryptorchidism and reported pubic hair development and acne since the age of 4 years. [ncbi.nlm.nih.gov]

Non salt losing CAH present late in childhood with precocious pubic hair and/or clitoromegaly, often accompanied by accelerated growth and advanced bone age. [quizlet.com]

At the age of 4, her pubic hair was in growth, accompanied with gradually enlarged clitoris and labia, which was in rapid growth before 8 years old. [alliedacademies.org]

McCune-Albright Syndrome

In girls with PP, it is usually vaginal bleeding and breast tissue, with little or no pubic hair. [fibrousdysplasia.org]

The size of his testicles was only 2 ml at that time and remained thus despite a progression of his pubic hair to Tanner stage IV at the age of 10 years. [ncbi.nlm.nih.gov]

[…] and axillary hair, and precocious sexual behavior. [fibrousdysplasia.org]

Secondary Amenorrhea

hair development Initial growth acceleration (8 to 10) Elevation of papilla only; no pubic hair 1 1 Thelarche (9 to 11) See adrenarche for stage 2 development 2 1 Adrenarche [aafp.org]

hair (Signs of adrenal cortical failure) Decrease in skin pigmentation Anemia due to lack of pituitary erythropoeitic factor Weakness, lethargy Hypothyroidism and hypothermia [gradestack.com]

View/Print Table TABLE 1 Normal Female Pubertal Development Developmental stage (age in years) Anatomic drawing Tanner stage Breast development Pubic hair development Initial [aafp.org]

Delayed Male Puberty

Pubic hair will spread out to the inner thighs and lower stomach. [health.howstuffworks.com]

Pubic hair also starts to grow, and some girls may notice more hair on their legs and arms. [nhs.uk]

Delayed testicular growth inhibits other natural signs of puberty from occurring, such as development of pubic hair. [mcsodoctors.com]