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Living with Juvenile polyposis syndrome

An inherited condition with many noncancerous growths called polyps in the digestive tract, usually the colon.

Understanding Juvenile polyposis syndrome

Juvenile polyposis syndrome is an inherited condition with multiple noncancerous (benign) growths called juvenile polyps in the digestive tract.

People typically develop polyps before age 20. "Juvenile" refers to the type of tissue in the polyp, not the person's age. Polyps are usually in the colon, and the number ranges from a few to hundreds. They may cause bleeding, anemia, belly pain, and diarrhea. About 15 percent of people have other differences, such as intestinal malrotation, heart or brain differences, cleft palate, or extra fingers or toes. It can appear at a variety of ages.

Signs & symptoms

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

  • Juvenile polyps in the colon and rectum
  • Polyps in the small intestine
  • Belly pain
  • Bleeding from the digestive tract
  • Anemia (low red blood cells)
  • Diarrhea

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 cancer specialists, digestive system specialists and genetic specialists.

  3. Ask which tests can help

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

Care & treatment

Care team
Cancer specialists (oncologists); Digestive system specialists (gastroenterologists); Genetic specialists (geneticists)
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
Which tests, such as colonoscopy, do I need and how often?
Can genetic testing find the gene change in our family?
Should other family members be screened?

Quick facts

Symptoms usually starta variety of ages
InheritanceAutosomal Dominant

GARD says changes in genes (also called variants) cause this condition. It is autosomal dominant, meaning one changed copy of the gene is enough.

GeneticGastrointestinal

Also known as: jip; jps; juvenile gastrointestinal polyposis; juvenile intestinal polyposis; juvenile multiple polyps syndrome; juvenile polyposis

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Juvenile polyposis syndromeGARD ID 3065 · 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 Juvenile polyposis syndrome.

Explore the Juvenile polyposis syndrome blog

Explore research for Juvenile polyposis syndrome

Explore actively recruiting Juvenile polyposis syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Juvenile polyposis syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
  • Share your city to look for research near you
  • Eligibility is confirmed by the study team

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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.

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