What is Uncombable Hair Syndrome?
Uncombable Hair Syndrome (UHS) is a rare genetic hair disorder characterized by dry, frizzy, and unruly hair that cannot be combed flat. The hair often stands out from the scalp and has a distinctive “spun-glass” or “cotton candy” appearance.
What Causes Uncombable Hair Syndrome?

UHS is caused by mutations in genes responsible for hair shaft formation, including:
- PADI3
- TGM3
- TCHH
These genetic mutations affect the hair’s shape and structure, resulting in the typical hair texture and appearance.
What Are the Symptoms?
Symptoms usually include:
- Dry, wiry, frizzy hair that resists combing
- Hair that is often light-colored, shiny, and stands away from the scalp
- No associated hair loss or scalp inflammation
- Hair texture usually improves with age
How is Uncombable Hair Syndrome Diagnosed?
Diagnosis involves:
- Clinical examination of hair texture and appearance
- Microscopic analysis of hair shafts showing characteristic triangular or kidney-shaped cross-sections with irregular surfaces
- Genetic testing to identify mutations in related genes
How is Uncombable Hair Syndrome Treated?
There is no specific cure, but management includes:
- Gentle hair care using mild shampoos and conditioners
- Avoiding harsh hair treatments or heat styling
- Regular moisturizing to reduce dryness and frizz
- Patience as hair texture often improves naturally over time
Can Uncombable Hair Syndrome Cause Complications?

UHS generally does not cause any serious complications. It is primarily a cosmetic concern and does not affect overall health.
When Should You See a Doctor?
See a healthcare professional or dermatologist if:
- Your child has persistent, unmanageable hair texture
- You want confirmation of diagnosis
- You seek advice on hair care and management



