Mud fever, or equine pastern dermatitis, is a painful skin condition affecting horses' lower limbs caused by prolonged wet conditions and bacterial infection requiring prevention and early treatment.
Mud fever causes significant pain and discomfort to affected horses, particularly when removing scabs for treatment. Horses with severe cases may be reluctant to bear weight on affected limbs. Chronic cases involving lymphangitis cause substantial welfare impact through persistent swelling, thickening, and restricted circulation. Prevention through pasture management, shelter provision, and leg protection during wet conditions is far preferable to treatment. Owners should inspect lower limbs regularly during wet weather to catch early cases before they progress.