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Living with Hypotrichosis-lymphedema-telangiectasia-renal defect syndrome

A genetic condition that affects hair, the lymph system, small blood vessels in the skin, and the kidneys.

Understanding Hypotrichosis-lymphedema-telangiectasia-renal defect syndrome

Hypotrichosis-lymphedema-telangiectasia-renal defect syndrome is a genetic condition with hair loss, swelling, small red skin spots, and kidney problems.

This condition affects children and gets worse over time. It has four main features: hair loss (hypotrichosis), swelling in the arms and legs (lymphedema), small red spots on the skin (telangiectasia), and kidney problems (renal defect).

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • No eyebrows
  • No eyelashes
  • Sparse scalp hair
  • Swelling from extra lymph fluid under the skin (lymphedema)
  • Fluid collecting around the testicle (hydrocele)
  • Skin that looks see-through (dermal translucency)

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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

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

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
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 rare disease patient organizations for support
  • 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
Can genetic testing for the SOX18 gene confirm this diagnosis?
How should we keep track of my child's kidney health over time?
What can help manage the swelling in the arms and legs?

Quick facts

InheritanceAutosomal Dominant

This condition is caused by a variant (change) in the SOX18 gene. It is inherited in an autosomal dominant pattern, which means a person needs to inherit only one changed copy of the gene to have the condition.

Also known as: hltrs (hypotrichosis, lymphedema, telangiectasia, renal defect) syndrome; hypotrichosis, lymphedema, telangiectasia, renal defect syndrome; telangiectatic membranoproliferative glomerulonephritis

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Hypotrichosis-lymphedema-telangiectasia-renal defect syndromeGARD ID 2492 · 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 Hypotrichosis-lymphedema-telangiectasia-renal defect syndrome.

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