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Living with Enterokinase deficiency

A rare genetic digestive condition in which the body has trouble absorbing food from early infancy.

Understanding Enterokinase deficiency

Enterokinase deficiency is a rare genetic digestive disease that starts early in life.

GARD describes poor growth and weight gain, swelling (edema), low protein levels in the blood, diarrhea, and trouble absorbing fat. It is seen in newborns and infants. Celiac disease or other pancreas or gut disorders may also be present.

Signs & symptoms

GARD describes these features in its summary:

  • Poor growth and weight gain (failure to thrive)
  • Swelling (edema)
  • Low protein in the blood
  • Diarrhea
  • Trouble absorbing fat

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 digestive system specialists and genetic specialists.

  3. Consider genetic testing

    Changes in TMPRSS15 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
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
Can genetic testing for the TMPRSS15 gene confirm this?
Which specialists, such as a stomach and gut doctor or dietitian, should we see?
How can we support healthy growth?

Quick facts

Symptoms usually startNewborn and as an Infant
InheritanceAutosomal Recessive
GenesTMPRSS15

Changes in the TMPRSS15 gene cause this condition. It is autosomal recessive, which means a child inherits a changed copy of the gene from each parent.

GeneticGastrointestinal

Also known as: congenital enterokinase deficiency; congenital enteropathy due to enteropeptidase deficiency; deficiency of enterokinase; deficiency of enteropeptidase; enteropeptidase deficiency; intestinal enterokinase deficiency

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Enterokinase deficiencyGARD ID 17038 · 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 Enterokinase deficiency.

Explore the Enterokinase deficiency blog

Explore research for Enterokinase deficiency

Explore actively recruiting Enterokinase deficiency studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Enterokinase deficiency 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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