# Abdominal Necrotizing Fasciitis Secondary to the Intramuscular Injection of Permethrin: An Uncommon Case Presentation

## TL;DR

A woman developed a severe abdominal infection after injecting permethrin, highlighting the dangers of toxic substance misuse.

## Contribution

This case report highlights the rare but severe complication of necrotizing fasciitis following intramuscular permethrin injection.

## Key findings

- The patient developed necrotizing fasciitis after intramuscular permethrin injection.
- Surgical debridement and antibiotics led to a favorable outcome.
- Permethrin was linked to local tissue toxicity and infection.

## Abstract

Necrotizing fasciitis is a severe, rapidly progressing bacterial infection. We report a unique case in a 40-year-old woman with schizophrenia who developed necrotizing fasciitis after self-injecting permethrin intramuscularly into the lower abdomen. The patient presented with abdominal pain, fever, and a fluid collection on computed tomography. Surgical debridement and antibiotic therapy were performed, resulting in a favorable clinical evolution. The case suggests that permethrin induced local toxicity and tissue damage. Early diagnosis, prompt surgical intervention, and prevention of toxic substance misuse are essential.