Part the Coat: a Mustang's Hair Hides the Skin
A Mustang's coat is built for hard weather, and that thickness means skin problems can develop well out of sight. Judge this horse by touch as much as by eye: part the hair down to the skin along the neck, back, belly and hindquarters, and feel for flakes, crusts, lumps or heat that the surface never shows. A healthy Mustang coat, even a shaggy winter one, sits over skin that feels smooth and comfortable, and the horse leans into a good scratch rather than flinching or stamping. Areas where the horse flinches, twitches repeatedly or tries to move away from your hand deserve a closer look with a light.
Rubbing Points: Mane, Tail and Belly
Where a Mustang rubs tells you where the problem itches. A mane rubbed ragged at the roots, a tail head worn to stubble from rubbing against a fence post, or a belly polished bare underneath all point to persistent irritation in those zones. Watch the herd as well as the horse: a Mustang who rubs at the same times and places as his companions may share an environmental cause, while one who rubs alone may have something specific to his own skin. Check the rubbing posts themselves for hair build-up, which shows how long and how hard the horse has been at it. Note whether the rubbing is seasonal, since that pattern matters to the vet.
Crusts Along the Back and Sores That Linger
Crusting along a Mustang's back and loins, where rain sits longest on the coat, is a common place for skin trouble to establish itself. Feel for scabs that lift with tufts of hair, leaving tender skin beneath, and for patches where the coat stands up in tufts instead of lying flat. Elsewhere, treat any sore that fails to heal on the usual timescale, any patch of skin that becomes thickened and grey, and any swelling under a rubbed area as signs the skin needs professional eyes. A Mustang who has lived outdoors may tolerate discomfort quietly, so a small-looking sore on a stoic horse should be taken at least as seriously as a dramatic one.
Seasonal Shedding That Does Not Complete
A Mustang's shedding pattern is itself a skin and coat report. Healthy shedding comes away evenly, revealing a sleeker coat beneath, while problem shedding leaves a patchwork: long dull hair clinging along the belly and hindquarters, rough tufts over the ribs, and new hair growing in thin or discoloured. A coat that stays rough, staring and lifeless once shedding finishes, or a horse who seems to keep a winter layer deep into warm weather, is showing you something has changed. Compare this Mustang with herdmates of a similar age on the same feed and shelter, because the comparison separates an individual problem from a herd-wide one.
When a Mustang's Skin Needs the Vet
Book the vet for a Mustang whose skin problem is spreading between visits, whose sores weep, bleed or smell, or whose rubbing is damaging the skin faster than it can heal. Call sooner if the horse loses condition alongside the coat changes, if swelling appears under crusted areas, or if several horses develop the same signs together. Photograph each area against your hand for scale every few days, and write down what changed in grazing, shelter, rugs or herdmates at the same time. With KinsLe's Pet Passport, a Mustang's examination findings, past skin flare-ups and care notes travel together in one packet, ready for any vet or new barn that takes over his care.