There are many different types of hereditary skin conditions that you may see in the horse population. Some of these include Junctional Epidermolysis Bullosa (JEB) in American Saddlebreds, Hereditary equine regional dermal asthenia (HERDA) in Quarter Horses, and Pemphigus erythematosus (PE).
Junctional Epidermolysis Bullosa (JEB) is a rare, debilitating genetic condition that is characterized by blisters in the mouth, esophagus, stomach, and anus.
HERDA is a skin condition that is caused by a mutation in the COL7A1 gene. This mutation leads to a defect in type VII collagen production. Horses with HERDA often suffer from a lack of elasticity in their skin and a thinning coat.
PE is an autoimmune disease of the skin that causes blistering on various parts of the body including the head.
Some breeds of horses are more susceptible to certain diseases because of their genetic makeup. It is important for horse owners to be aware of the breed-specific risks their horse faces so they can take the necessary precautions.