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Living with Trichorhinophalangeal syndrome

A genetic condition with distinctive facial features, fine sparse hair, and short fingers and feet, in two types.

Understanding Trichorhinophalangeal syndrome

Trichorhinophalangeal syndrome (TRPS) is a genetic condition with two types, TRPS I and TRPS II, that affect the face, hair, nails, and bones.

Both types include a large nose with a broad tip, thick eyebrows, a long philtrum, large ears, fine sparse hair, and thin nails. Bone findings include short stature, short fingers and feet, and early hip problems. TRPS II also has multiple bony growths (osteochondromas) and a higher chance of mild to moderate intellectual disability.

Signs & symptoms

Symptoms vary from person to person. GARD describes these features:

  • Large nose with a broad tip
  • Fine, sparse, slow-growing hair
  • Thin, poorly formed nails
  • Short stature and short fingers and feet
  • Early, marked hip problems
  • Multiple bony growths in TRPS II

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 bone and joint specialists, 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.

  4. Connect with expert centers

    National Foundation for Ectodermal Dysplasias may keep lists of experts for this condition.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); Genetic specialists (geneticists); Skin, hair, and nail specialists (dermatologists)
Expert care
Expert lists: National Foundation for Ectodermal Dysplasias
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 National Foundation for Ectodermal Dysplasias and other patient organizations
  • 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
Do I or my child have TRPS I or TRPS II, and how is that tested?
How should hip and joint health be monitored?
If TRPS II, how are the bony growths followed?

Quick facts

TRPS I is caused by a change in one copy of the TRPS1 gene. TRPS II is caused by a deletion that includes the TRPS1, RAD21, and EXT1 genes.

GeneticSkin

Also known as: trps

Patient organizations

Source: NIH GARD · Trichorhinophalangeal syndromeGARD ID 21451 · 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 Trichorhinophalangeal syndrome.

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