Prepubertal hypertrichosis

Prepubertal hypertrichosis is a rare condition characterized by excessive hair growth in children before the onset of puberty. This condition is not associated with the increased production of sex hormones that typically occurs during puberty. Instead, it is thought to be caused by an overproduction of hair follicles or an increased sensitivity of hair follicles to normal levels of circulating hormones.

Causes

The exact cause of prepubertal hypertrichosis is unknown. However, it is thought to be due to an overproduction of hair follicles or an increased sensitivity of hair follicles to normal levels of circulating hormones. Some cases have been associated with certain medications, such as minoxidil and cyclosporine. Other cases have been linked to underlying medical conditions, such as malnutrition, hypothyroidism, and porphyrias.

Symptoms

The main symptom of prepubertal hypertrichosis is excessive hair growth. This can occur anywhere on the body, but it is most commonly seen on the face, arms, and legs. The hair is usually dark and coarse. Other symptoms may include acne, obesity, and hirsutism.

Diagnosis

Diagnosis of prepubertal hypertrichosis is based on the physical examination and the patient's medical history. Laboratory tests may be done to rule out underlying medical conditions. In some cases, a skin biopsy may be performed to examine the hair follicles.

Treatment

Treatment for prepubertal hypertrichosis is aimed at addressing the underlying cause, if one can be identified. This may involve discontinuing a medication or treating an underlying medical condition. In some cases, hair removal techniques, such as shaving, waxing, or laser hair removal, may be used to manage the symptoms.

See also

• Hypertrichosis
• Hirsutism
• Hormone imbalance

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