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Secondary infections with microbes or mites commonly cause complications. [6] Infestations with the mange mite Chorioptes equi are very itchy, and lead to self-trauma and dermatitis. [6] The quality of the hoof is often poor; hooves are prone to cracks, splits and the development of thrush and abscesses; [4] horses may develop laminitis. [1]
In addition, once a horse has had an episode, it appears to be predisposed to recurrence, and may suffer from "filled legs" permanently – i.e. if left in a stable and relatively immobile, poor lymphatic circulation results in a passive oedema of the previously affected limb, that dissipates on exercise.
Mud fever, also known as scratches or pastern dermatitis, is a group of diseases of horses causing irritation and dermatitis in the lower limbs of horses. Often caused by a mixture of bacteria, typically Dermatophilus congolensis and Staphylococcus spp., mud fever can also be caused by fungal organisms ( dermatophytes ).
Eutrombicula alfreddugesi and E. splendens are common in the Americas where they infest the skin of the face, muzzle, legs, and belly of cattle and horses. (Trombiculid mites also leave intensely pruritic spots on dogs and humans after feeding and such infestation is closely associated with the grassland and scrub habitats of the nonparasitic ...
What they look like: Chiggers, a type of small mite, typically leave clusters of bites that are often very itchy. In many cases, chigger bites appear as small, red and itchy bumps. Sometimes, they ...
Epizootic lymphangitis usually presents with the following symptoms: Skin eruption, usually on legs, occasionally head or neck, rarely other body parts. The lymph vessels in the skin stand out prominently, and small hard nodules approximately 1 cm (1/2") in diameter appear on their course.
The individual mites remain external to the epidermis within the follicle, but appear to be within the skin because they are below the general outer surface of the host. The mite Demodex canis is a common cause of demodicosis in dogs. Demodex mites are microscopic, cigar-shaped and have very short legs. These mites seem to feed on epidermal cells.
The horse stands in a "founder stance" in attempt to decrease the load on the affected feet. If it has laminitis in the front hooves, it will bring its hind legs underneath its body and put its fore legs out in front. [4] In cases of sinking, the horse stands with all four feet close together, like a circus elephant.