Sparse to absent axillary hair may occur in the scope of generalized loss of hair and skin disorders. Also, the primary absence of axillary hair as a secondary sexual characteristic may indicate hormonal disorders.
Most common diseases
Hypogonadism
Such patients have poor muscle development, a high-pitched voice, inadequate phallic and testicular growth, a small scrotum, sparse pubic and axillary hair, and absent body [msdmanuals.com]
As adults, affected patients have poor muscle development, a high-pitched voice, a small scrotum, decreased phallic and testicular growth, sparse pubic and axillary hair, [msdmanuals.com]
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]
After puberty, male patterns of hair growth (e.g., moustache and beard) can be normal, while in other cases, facial and pubic hair growth may be sparse. [rarediseases.org]
Axillary and pubic hair is sparse or absent. [ncbi.nlm.nih.gov]
Adiposis Dolorosa
Sparse pubic and axillary hair have also been reported. [orpha.net]
Polycystic Ovary Syndrome
Clinical description In addition to frontoparietal alopecia, the remaining scalp hair was also sparse, and axillary and pubic hair was absent. [orpha.net]
[…] scalp hair and absent facial, axillary and pubic hair. [jpma.org.pk]
She had fine sparse hair on scalp with absent eye brows but had normal eye lashes. [jpma.org.pk]
Klinefelter Syndrome
[…] facial and axillary hair clinodactyly tall stature narrow shoulders broad hips normal to moderately reduced Leydig cell function increased secretion of follicle-stimulating [radiopaedia.org]
[…] to puberty and small in post pubertal testes; there is absent spermatogenesis the kidneys may be symmetrically enlarged with small 1-8 mm cysts post pubertal gynecomastia sparse [radiopaedia.org]
These include: Feminized body proportions and fat distribution Sparse or absent facial, axillary, pubic, or body hair Decreased muscle mass and strength Gynecomastia Small [symptoma.com]
Atrichia with Papular Lesions
Examination of the fifteen individuals alive revealed absent hair from the scalp and eyebrows, absent pubic and axillary hair, and sparse eyelashes on the upper eyelid in [cags.org.ae]
Eyebrow, eyelash, and body hair may also be sparse or absent; patients may have a few pubic and axillary hairs. [ncbi.nlm.nih.gov]
A one-and-a-half-month-old male baby was brought by his maternal grandmother with complaints of frontoparietal scalp hair recession, sparse eyelashes and eyebrows [Figure [idoj.in]
Liver Cirrhosis
Stigmata of chronic liver disease observed in the patients were Dupuytren's contracture in 21 (37.5%) patients, palmar erythema in 12 (21.4%) patients, and sparse axillary [atmph.org]
hair in 12 (21.4%) patients. [atmph.org]
Hypogonadotropic Hypogonadism Type 18
Such patients have poor muscle development, a high-pitched voice, inadequate phallic and testicular growth, a small scrotum, sparse pubic and axillary hair, and absent body [merckmanuals.com]
On physical examination, there were sparse facial, axillary and pubic hairs, bilateral gynaecomastia, stretch penile length of 5 cm and bilateral testicular volume of 10 mL [casereports.bmj.com]
[…] and pubic hairs. [casereports.bmj.com]
Ruptured Ovarian Cyst
Clinical description In addition to frontoparietal alopecia, the remaining scalp hair was also sparse, and axillary and pubic hair was absent. [orpha.net]
He had a long face, frontal alopecia, and sparse eyebrows. He had no facial, axillary or pubic hair and his Tanner stage was two. [ncbi.nlm.nih.gov]
Tanner stage was 2; she had minimal breast buds and no axillary or pubic hair. [ncbi.nlm.nih.gov]
Salti-Salem Syndrome
Clinical description In addition to frontoparietal alopecia, the remaining scalp hair was also sparse, and axillary and pubic hair was absent. [orpha.net]