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Living with Isolated anterior cervical hypertrichosis

A rare skin condition in which extra hair grows on the front of the neck during childhood.

Understanding Isolated anterior cervical hypertrichosis

Isolated anterior cervical hypertrichosis is a rare condition with extra hair growth on the front of the neck.

Hair grows near the laryngeal prominence (the "Adam's apple" area) on the front of the neck. This is a localized form of hypertrichosis, which means extra hair growth in one area. It starts in childhood.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. Its summary describes this main feature:

  • Extra hair growth near the front of the neck

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include genetic specialists and skin, hair, and nail specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with Children's Skin Disease Foundation
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
Could genetic testing explain the extra hair growth?
Is the hair growth likely to change over time?
Should a dermatologist check my child's skin?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Dominant, Autosomal Recessive

GARD says changes in genes cause this condition. It can be inherited in an autosomal dominant way (one changed copy is enough) or an autosomal recessive way (a changed copy from each parent).

GeneticSkin

Also known as: anterior cervical hypertrichosis; congenital cervical hypertrichosis; hairy throat syndrome; hypertrichosis, congenital anterior cervical; tsukahara kajii syndrome; tsukahara-kajii syndrome

Patient organizations

Broader rare-disease groups

Source: NIH GARD · Isolated anterior cervical hypertrichosisGARD ID 8438 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Isolated anterior cervical hypertrichosis.

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