Mud fever is one of the most common skin problems in horses, especially during the damp autumn and winter months. This skin condition usually affects the pastern area but can spread further up the leg. Not only is it unpleasant to look at, but it can also be very painful for your horse. In this article, you’ll learn what mud fever really is, how it develops, and which treatments are truly effective.

What is mud fever?

Mud fever, also called pastern dermatitis, is an inflammation of the skin in the pastern area. It often starts with small redness and crusts but can spread quickly and, in severe cases, lead to oozing, deep wounds. If left untreated, mud fever can severely limit your horse’s mobility.

Causes of mud fever

The triggers for mud fever are varied and usually involve a combination of factors:

• Moisture and mud: Constant wet conditions soften the skin and make it more vulnerable to germs.

• Bacteria, fungi, or parasites: These enter through damaged skin and cause inflammation.

• Mechanical friction: For example, from protective boots, straw, or hay.

• Allergies or skin sensitivities: Some horses react more strongly to environmental irritants.

Recognizing the symptoms

Typical signs of mud fever include:

• Redness and swelling in the pastern area

• Crusts, hair loss, and skin cracks

• Oozing or pus-filled spots

• Sensitivity or lameness

The earlier you recognize these symptoms, the easier it is to treat mud fever.

Treatment of mud fever

• Cleaning: Gently clean the affected area without further irritating the skin.

• Drying: Keep the legs as dry as possible, avoid wet bedding and muddy paddocks.

• Care: Use gentle, skin-friendly products that support the skin barrier.

• Protection: Shield the skin from further moisture and friction.

• Veterinary help: Always consult a vet for severe or worsening cases.

Did you know? Your horse’s skin barrier is the most important defense against bacteria and fungi. When it’s weakened, pathogens can easily penetrate and cause inflammation. Targeted care can not only speed up healing but also reduce the risk of recurrence.

Doderm – Support for your horse’s skin

Doderm contains natural antibodies derived from milk that specifically combat harmful bacteria without disturbing the healthy skin flora. Its formula soothes irritated skin, promotes regeneration, and strengthens the skin barrier. This helps your horse heal faster and move freely again — without the pain and itching caused by mud fever.