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Thrush, also called Pododermatitis, is a very common hoof infection around the frog of the hoof. “In severe cases, thrush may spread to the white line, sole, and sensitive layers of the foot, which may result in permanent lameness” (Petrov and Dicks, 2013). Often thrush can be painful and produces a foul smell. Puss, blood and/ or black discharge may also be secreted from the infected area, specifically the sulcus of the frog. This infection is caused by poor living conditions, like wet bedding or a feces filled stall. More specifically, bacteria or fungus infect the hoof and destroy the tissue of the frog ("Thrush”). In a study of eight horses with thrush, it was determined equine thrush, opposed to bovine or swine, is caused by “F. necrophorum subsp. necrophorum, and not B. nodosus […] The absence of F. necrophorum subsp. necrophorum from nine of the 14 samples collected from the eight horses with thrush suggests that other microbial species may be associated with the disease” and interestingly enough “F. equinum is not associated with equine hoof thrush” (Petrov and Dicks, 2013). Treatment of thrush can be relatively simple as long as the infection is not deep. The horse must be removed from the wet environment and the foot must be cleaned frequently. The infection should be cleaned with an iodine solution or other antiseptic ("Thrush”). Prevention is very simple, and as many racehorse trainers already do, the stall must be thoroughly cleaned at least once a day, if not more frequently. Thrush is not a major problem in racing thoroughbreds because their stalls are often so well cleaned and maintained. However, if this were to be found, the infection should clear up quickly within one to two weeks.