Perianal abscess natural history, complications and prognosis

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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Overview

An anorectal abscess that is untreated or not fully drained can get worse and cause a severe local or systemic infection which can be life-threatening (Fornier's gangrane or sepsis). On the long run, a perianal fistula can arise from the abscess cavity - an abnormal tract that connects the rectum and the external perianal region. After successful treatment and recovery, a person can generally return to normal activities. However, someone with inflammatory bowel disease often needs lifelong monitoring by a healthcare provider. Any new or worsening symptoms should be reported to the healthcare provider.

Complications

• Anal fistula formation
• Recurrence
• Scarring
• Systemic infection