Companion Animals

Horse Mud Fever and Skin Welfare

Mud fever (pastern dermatitis) is a painful bacterial skin condition common in winter. Prevention and early treatment protect horse welfare during wet seasons.

Key Facts

Mud fever is caused by Dermatophilus congolensis bacteria penetrating softened wet skin
Pink-skinned unpigmented lower legs are most susceptible to mud fever in horses
Infection causes painful crusty scabs, swelling, and lameness if untreated
Keeping legs dry, avoiding repeated washing, and barrier creams prevent most cases
Some horses have underlying immune conditions making them susceptible despite good management

Welfare Considerations

Mud fever causes chronic painful skin inflammation that significantly impairs welfare during winter months. The condition is highly preventable with appropriate pasture management and leg care, yet it remains extremely common. Many cases that become severe represent management failures where early signs were missed or prevention was inadequate. Early recognition and prompt treatment limit welfare harm.

What You Can Do

Inspect horse legs regularly during wet seasons for early signs of mud fever
Avoid repeated washing of horse legs which removes natural skin oils and increases infection risk
Apply barrier creams to susceptible lower legs before turnout in wet conditions
Seek veterinary advice early for mud fever cases that do not resolve with basic management