Horse Mud Fever Management and Prevention

Mud fever (pastern dermatitis) is a painful bacterial skin infection affecting horses kept in wet, muddy conditions. Prevention through good paddock management and skin care is far preferable to treatment.

Key Facts

Mud fever is caused primarily by Dermatophilus congolensis and occasionally Staphylococcal species in softened skin
The condition causes painful crusting, scab formation, and skin inflammation around the lower limbs
Horses with white legs and pink skin have lower melanin protection and are more susceptible
Heavy feathering on the lower legs traps moisture against the skin, significantly increasing mud fever risk
Removing scabs without proper softening causes pain and damages healing skin beneath
Prevention through paddock rotation, sacrifice fields, and skin conditioning is more effective than repeated treatment

Welfare Considerations

Mud fever causes genuine pain — horses with active lesions flinch and resist when their legs are handled, and the lower limb swelling and lameness that accompany severe cases significantly impact quality of life. The condition is strongly linked to paddock management decisions and is substantially preventable through better land and skin management. Horses kept in permanently muddy conditions without intervention suffer a preventable welfare burden through winter and spring.

What You Can Do

Designate a sacrifice field or use hardcore standing areas to keep horses off heavy mud in winter
Dry legs thoroughly after washing — do not leave legs wet if the horse will return to a muddy paddock
Apply barrier creams to the lower limbs of susceptible horses before turnout in wet conditions
Soften scabs with warm water or coconut oil before gentle removal to avoid pain
Clip leg feathering on susceptible horses in winter to improve air circulation and treatment access
Seek veterinary attention for severe cases involving significant swelling or lameness