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Living with Syndromic congenital sodium diarrhea

A rare genetic gut condition present at birth, with severe watery diarrhea, plus nose, eye, and sometimes other differences.

Understanding Syndromic congenital sodium diarrhea

Syndromic congenital sodium diarrhea is a rare genetic intestinal condition with severe watery diarrhea from birth.

The diarrhea contains a lot of sodium and can lead to low blood sodium and too much acid in the blood (metabolic acidosis). Most people also have a blocked back of the nose (choanal atresia) on one or both sides and corneal erosions. Some have blocked intestines or an extra finger or toe. Signs may begin during pregnancy or in the newborn period.

Signs & symptoms

GARD doesn't list specific symptoms for this condition yet. The summary describes:

  • Severe watery diarrhea from birth
  • Low blood sodium
  • Too much acid in the blood
  • Blocked back of the nose (choanal atresia)
  • Corneal erosions
  • Blocked intestine or extra fingers or toes

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 SPINT2 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
How are fluids and salts balanced for my child?
Which specialists should follow the nose, gut, and eyes?
Would SPINT2 gene testing help our family?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn
InheritanceAutosomal Recessive
GenesSPINT2

Changes in the SPINT2 gene cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

GeneticGastrointestinal

Also known as: syndromic congenital tufting enteropathy

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Syndromic congenital sodium diarrheaGARD ID 22262 · 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

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