Mud Fever in Horses: Prevention and Welfare Management

Mud fever causes painful skin inflammation in horses exposed to wet muddy conditions and requires proactive management to prevent chronic suffering.

Key Facts

Mud fever, also called pastern dermatitis, is caused by prolonged skin exposure to wet muddy conditions enabling bacterial and fungal infection.
The lower limbs, particularly white-skinned areas, are most susceptible due to reduced melanin protection.
Scab formation causes pain when removed and must be softened before cleaning to minimise discomfort.
Prevention requires mud management including sacrifice paddocks, hard standing, and appropriate turnout rotation.
Affected horses may become three-legged lame in severe cases affecting quality of life and workability.
Photosensitisation can cause similar clinical signs in non-muddy conditions if toxic plants are ingested.
Chronic cases may develop lymphangitis, a serious secondary complication causing significant limb swelling and pain.

Welfare Considerations

Mud fever causes ongoing pain that horses often mask until lesions become severe. Early detection requires regular examination of lower limbs during wet seasons, particularly in horses with white legs. Treatment is labour-intensive: softening scabs, gentle cleaning, thorough drying, and applying barrier creams. Horses in chronic pain from mud fever show reduced willingness to move, altered weight-bearing, and behaviour changes indicating discomfort. Management failures during wet winters result in horses suffering preventable skin disease that could be avoided through paddock management investment. Welfare-conscious horse keeping includes a mud management plan as a seasonal welfare priority.

What You Can Do

Inspect lower limbs regularly during wet seasons for early mud fever signs.
Provide hard standing or sacrifice paddocks to reduce prolonged mud exposure.
Clean and dry affected limbs gently and apply veterinary-recommended barrier cream.
Consult your vet for antibiotic treatment if deep infection or lymphangitis is suspected.
Plan paddock management proactively before wet seasons to prevent conditions that cause mud fever.