a fluctuating swelling on the inner and front part of the hock of a horse , arising from a distension of the joint capsule with synovial fluid
a soft swelling on the medial and or
A filling with excess synovial fluid of the largest joint of the hock called the "tarsocrual joint."
The feeling of panic when riding through marshy area. Also used to refer to horses who throw a fit at having to go through water puddles.
Bog Spavin is a swelling of the tibiotarsal joint of the horse's hock which, in itself, does not cause lameness. The joint becomes distended by excess synovial fluid bringing about a soft, fluctuant swelling on the front of the joint, as well as the inside and outside.