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Strange Veterinary Hoof Terms Explained…

Thrush and Canker

4Thrush is a common bacterial/fungal
infection which affects the frog and sole of
the foot, producing malodorous, black
necrotic material particularly in the grooves
between the frog and the sole (frog sulci). If
left untreated, it can affect deeper
structures within the foot. It is most commonly seen in horses kept in damp conditions or through poor hygiene.
However, it can occur in horses kept in a clean environment, if the frog is overgrown.

Canker is a disease affecting the soles charicterised by a foul smelling
creamy exudate. Canker is similar, but a more serious condition than
thrush. Although it is rare, unlike thrush it can be difficult to solve. It is a
severe bacterial/fungal infection (proliferative pododermatitis) that
generally originates in the frog, and affects the heels, horn and underlying
structures of the hoof. The clinical signs are the development of a
foul-smelling white/grey pus in and around the frog and the presence of
granulation-like tissue which often bleeds. Lameness is often variable depending upon the depth of structures involved.