Feline hyperesthesia syndrome is a poorly understood condition causing episodes of extreme skin sensitivity and distress that can significantly impact cat welfare.
FHS causes episodes of severe apparent distress during which cats appear frightened of their own body, frantically running, vocalising and self-mutilating. During episodes, cats may be unapproachable and appear genuinely panicked. The unpredictability of episodes creates ongoing anxiety in affected cats even between episodes, as they cannot predict when the next will occur. The self-mutilation associated with severe FHS causes real physical injury. Because the condition is incompletely understood, treatment is often trial-and-error, meaning some cats have prolonged periods of inadequately managed welfare before effective treatment is found.