Cutaneous Anthrax Infection

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 center of dying…

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 center of dying tissue-called an eschar-surrounded by redness and swelling.

Current as ofJune 9, 2019

Author: Healthwise Staff
E. Gregory Thompson, MD – Internal Medicine
Adam Husney, MD – Family Medicine
Leslie A. Tengelsen, PhD, DVM – Epidemiology

This information does not replace the advice of a doctor. Healthwise, Incorporated, disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content.