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Living with Amniotic band syndrome

A condition in which bands from the sac around a baby in the womb affect how parts of the body develop.

Understanding Amniotic band syndrome

Amniotic band syndrome, also called constriction rings syndrome, is a condition in which bands form from the lining of the amnion, the sac around a baby in the womb.

As the baby grows, the bands may attach to and affect different parts of the body, which can cause tight rings around an area or even loss of a part. Signs vary a lot depending on which areas are involved. It is present during pregnancy or at birth.

Signs & symptoms

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

  • Tight rings around the fingers, toes, or limbs
  • Short or missing fingers, toes, or limbs
  • Wide-set eyes
  • Too much fluid in the brain (hydrocephalus)
  • Prominent forehead
  • Cleft lip or palate

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

    Fetal Health Foundation 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: Fetal Health Foundation
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 Fetal Health Foundation 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
Which parts of the body are affected in my child?
Which specialists, such as a plastic or hand surgeon, should we see?
What options are there to treat the constriction rings?

Quick facts

Symptoms usually startduring Pregnancy and as a Newborn

GARD says that in most cases the cause of constriction rings syndrome remains unknown.

GeneticSkin

Also known as: adam syndrome; amniotic band constriction; amniotic band sequence; amniotic bands; amniotic bands sequence; amniotic deformity-adhesion-mutilation syndrome

Patient organizations

Source: NIH GARD · Amniotic band syndromeGARD ID 429 · 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 Amniotic band syndrome.

Explore the Amniotic band syndrome blog

Explore research for Amniotic band syndrome

Explore actively recruiting Amniotic band syndrome studies with HealthSpark.

HealthSpark

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

  • Recruiting studies from ClinicalTrials.gov
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  • 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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