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Living with Non-involuting congenital hemangioma

A rare birthmark made of extra blood vessels in the skin that is present at birth and does not fade away.

Understanding Non-involuting congenital hemangioma

Non-involuting congenital hemangioma (NICH) is a rare skin growth of abnormal blood vessels that is present at birth and does not go away on its own.

NICH looks like an oval, purplish mark or bump and can appear on any part of the body. It grows as the child grows. Unlike other hemangiomas, it does not shrink and disappear (involute) on its own. GARD lists onset as during pregnancy.

Signs & symptoms

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

  • Strawberry-like mark (hemangioma)
  • Small, widened blood vessels in the skin (telangiectasia)
  • Calcium deposits under the skin
  • Hemangioma on the middle of the forehead
  • Hemangioma in the groin or genital area (perineal)

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.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Vascular Birthmarks Foundation may keep lists of experts for this condition.

Care & treatment

Care team
Cancer specialists (oncologists)
Expert care
Expert lists: Vascular Birthmarks 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 Vascular Birthmarks Foundation
  • 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 can we tell NICH apart from other types of hemangioma?
What treatment options are there if it grows or causes concern?
Which signs should lead us to call the doctor?

Quick facts

Symptoms usually startduring Pregnancy

GARD doesn't describe a cause for this condition yet.

Also known as: nich; nich - non-involuting congenital hemangioma; nich - noninvoluting congenital hemangioma; noninvoluting congenital hemangioma

Patient organizations

Source: NIH GARD · Non-involuting congenital hemangiomaGARD ID 10890 · 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 Non-involuting congenital hemangioma.

Explore the Non-involuting congenital hemangioma blog

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