Cutaneous Anthrax Infection

Photo of a cutaneous anthrax infection on a veterinarian's hand

Photograph contributed by Robert Aylesworth, M.D.

Cutaneous anthrax usually begins as a small, raised bump that might itch. Within 1 to 2 days, the bump develops into a painless, fluid-filled blister about 1 cm (0.4 in.) to 3 cm (1.2 in.) in diameter. Within 7 to 10 days, the blister has a black centre of dying tissue-called an eschar-surrounded by redness and swelling.

Current as ofJuly 30, 2018

Author: Healthwise Staff
E. Gregory Thompson, MD - Internal Medicine
Anne C. Poinier, MD - Internal Medicine
Adam Husney, MD - Family Medicine
W. David Colby IV, MSc, MD, FRCPC - Infectious Disease
Leslie A. Tengelsen, PhD, DVM - Epidemiology

Is it an emergency?

If you or someone in your care has chest pains, difficulty breathing, or severe bleeding, it could be a life-threatening emergency. Call 9-1-1 or the local emergency number immediately.
If you are concerned about a possible poisoning or exposure to a toxic substance, call Poison Control now at 1-800-567-8911.

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