Sarcoptic mange causes severe suffering in wolf populations — hair loss, intense itching, secondary infection, and death from exposure — and is more severe in stressed or resource-limited animals.
Wolves with severe mange experience one of the most distressing chronic welfare conditions possible for a wild animal. The relentless itch drives constant scratching that creates open wounds; hair loss exposes skin to winter cold; secondary bacterial infection causes septicemia. Animals dying from mange may suffer for weeks or months. The social dimension matters too — infected wolves have reduced hunting efficiency and may become separated from pack members who no longer tolerate their compromised condition.