Scab
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Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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  • Blisters formed scabs after 1 week

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Content updated on Jan 4, 2023

About the symptom

A scab is a rough, dry protective crust that forms over a wound during healing. During the healing process, the tissue under the scab grows back and pushes out the scan to allow new skin to grow.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Numbness / sensory disorder

  • Numbness of the body

  • Systemic rash

  • Fever

Possible causes

Related serious diseases

  • Kawasaki disease

    A disease caused by the body's immune system attacking the blood vessels. Kawasaki disease requires hospitalization for treatment and ultrasound scans. Regular follow-up scans are important to reduce the risk of future heart attacks.

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you have a scab?

Other Related Symptoms

Similar symptoms or complaints

Reviewed By:

Yukiko Ueda

Yukiko Ueda, MD (Dermatology)

Dr. Ueda graduated from the Niigata University School of Medicine and trained at the University of Tokyo Medical School. She is currently a clinical assistant professor at the Department of Dermatology, Jichi Medical University, and holds several posts in the dermatology departments at Kyoto Prefectural University of Medicine, Komagome Hospital, University of Tokyo, and the Medical Center of Japan Red Cross Society.

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