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Living with Necrotizing soft tissue infection

A rare infection that spreads quickly through deep soft tissues and causes pain.

Understanding Necrotizing soft tissue infection

Necrotizing soft tissue infection is a rare infection that is painful and spreads quickly through the deep soft tissues.

It can be caused by one kind of germ or several kinds. Bacteria are the usual cause, and fungal infections have been described in rare cases. Early signs on exam can be subtle and may include redness, blisters, firm swollen tissue under the skin, and tenderness to touch. It can occur at any time in life.

Signs & symptoms

GARD doesn't list a detailed symptom list, but the summary describes these features:

  • Pain in deep soft tissues
  • Redness of the skin
  • Blisters
  • Firm swollen tissue under the skin
  • Tenderness to touch

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

    Your doctor may refer you to a specialist who knows rare conditions.

  3. Ask which tests can help

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

Care & treatment

Care team
A doctor familiar with rare conditions, plus specialists as needed
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 germ is causing my infection?
What follow-up care will I need after treatment?
Which signs should lead me to seek care right away?

Quick facts

Symptoms usually startany time in life

It is an infection that can be caused by one or several types of bacteria. Fungal infections have been described in rare cases.

Infectious

Also known as: nsti

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Necrotizing soft tissue infectionGARD ID 21839 · 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 Necrotizing soft tissue infection.

Explore the Necrotizing soft tissue infection blog

Explore research for Necrotizing soft tissue infection

Explore actively recruiting Necrotizing soft tissue infection studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Necrotizing soft tissue infection 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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