Cellulitis in Horses
Cellulitis is a bacterial infection. Most often, it occurs when bacteria enter an open wound or break in the skin. Once in the wound, the soft tissue is impacted beneath the horse’s skin. Horses that live outside often get minor cuts, especially on their legs. These wounds can easily become infected and lead to cellulitis.
Symptoms
Horses experience several symptoms, particularly with severe cellulitis:
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Swelling
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Heat
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Pain
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Red, tight skin
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“Stovepipe” appearance
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Lameness
Diagnosis
A physical exam is often enough to spot cellulitis. Vets might also collect blood or fluid to identify the bacteria. The sooner it's found, the better the outcome.
How Cellulitis Affects Equine Health
Cellulitis is an uncomfortable condition for a horse. It causes inflammation, which can be hot and painful. If left untreated, cellulitis can lead to infection spreading throughout the body. Sometimes, the infection causes the lymph vessels to swell. This is known as lymphangitis.
As it progresses, lymphangitis damages the lymphatic circulation permanently. At this stage, the horse may keep getting infections because its body can’t fight them off well.
If a rider or owner puts pressure on the infected area, it can cause pain and delay the healing.
Assessing Whether It Is Safe to Ride a Horse with Cellulitis
Potential Risks to the Horse
Riding a horse that is suffering from cellulitis can lead to serious issues for the horse. Infection and inflammation are already problems, and contact from riding can add stress and delay recovery. Exercise can exacerbate swelling and potentially cause the infection to spread.
If you choose to ride your horse while he is suffering from cellulitis, you can worsen his condition and progress it to lymphangitis. On top of making the condition worse, riding can be very painful for the horse.
Impact on Horse Performance
Cellulitis is not only a painful condition, but it can also restrict a horse from moving normally. The infected limb will be swollen and tender. In some horses, you’ll notice lameness. If a horse continues to exercise while experiencing cellulitis, the risk of secondary injuries goes up, and performance drops. A strained tendon, joint stress, or soreness in the opposite leg are all possible outcomes when they are compensating for the other leg.
Over time, imbalance can contribute to stiffness, fatigue, or even chronic issues. Infections also take a toll on stamina, weakening endurance and reducing overall strength. What might typically be a routine ride can quickly become exhausting for the horse. Riding under these conditions can turn into a stressful and uncomfortable experience, not only limiting performance but also risking the horse’s long-term soundness and well-being.
Veterinary Guidelines for Exercise
Veterinarians strongly advise restricting exercise when cellulitis is present. The best treatment is rest and minimal limb movement. Both are critical for controlling the infection and reducing swelling. If the cellulitis is mild, your vet might suggest hand walking to help with blood flow and healing. Don’t ride until the infection is gone and your horse is no longer in pain.
