Is Scabies Contagious?

  • Medical Author:
    Charles Patrick Davis, MD, PhD

    Dr. Charles "Pat" Davis, MD, PhD, is a board certified Emergency Medicine doctor who currently practices as a consultant and staff member for hospitals. He has a PhD in Microbiology (UT at Austin), and the MD (Univ. Texas Medical Branch, Galveston). He is a Clinical Professor (retired) in the Division of Emergency Medicine, UT Health Science Center at San Antonio, and has been the Chief of Emergency Medicine at UT Medical Branch and at UTHSCSA with over 250 publications.

  • Medical Editor: Melissa Conrad Stöppler, MD
    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

What Does Scabies Feel Like?

When symptoms develop, itching is the most common symptom of scabies. The itch of scabies is insidious and relentless and often worsens over a period of weeks. The itch is typically worse at night.

What is scabies?

Human scabies is caused by the human itch mite (Sarcoptes scabiei, variation or subtype hominis). This itch mite burrows into the upper layers of skin and lays its eggs in the skin. This itch mite is found worldwide and often causes outbreaks in places where people are living close together, such as dormitories, nursing homes, institutions, or prisons. The rash often includes areas such as the web spaces of the fingers, wrists, beltline, feet, scrotum, and areolas, but other areas may get infected.

Is scabies contagious?

Scabies is contagious. However, it usually requires fairly long skin-to-skin contact with an infested person (for example, carrying a person, sleeping with the person, or sexual partners). Infrequently, it may be contagious through contact with clothing or bedding, but this form of transfer of scabies is thought to be very infrequent. In general, most people who become infested with scabies usually have about 10-15 itch mites on their body. One exception to this rule is a scabies infestation that is seen less frequently called crusted or Norwegian scabies, in which large areas of skin are infected with huge numbers (thousands) of itch mites; a person with this type of scabies is highly contagious.

Although pets can become infested with similar itch mites, they are not usually spread from humans to animals or from animals to humans.

What is the contagious period for scabies?

As long as an individual has about 10 to 15 itch mites on their body and has skin-to-skin contact with an uninfested person, that person is contagious for scabies and can pass the organisms to others. In addition, a person who has recently acquired scabies and is in the incubation period (without symptoms) is also contagious for scabies.

Medically Reviewed by a Doctor on 9/23/2016

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