Cat Feline Hyperesthesia Syndrome

Feline hyperesthesia syndrome causes episodes of extreme skin sensitivity, self-directed aggression, and abnormal behaviors that are distressing for affected cats and their owners.

Key Facts

FHS involves episodic hypersensitivity of the skin along the back and tail
Affected cats may suddenly turn and attack their own tail or flank
Skin rippling or rolling along the back is a characteristic visual sign
Episodes can include vocalization, rapid grooming, dilated pupils, and apparent hallucinations
The condition may represent a spectrum from dermatological to neurological disease
Ruling out underlying causes including skin parasites, spinal disease, and food allergy is essential
Gabapentin, fluoxetine, and phenobarbital have been used with variable success
Stress reduction and environmental enrichment may reduce episode frequency

Welfare Considerations

Cats experiencing FHS episodes appear to be in acute distress - the combination of painful skin hypersensitivity, compulsive self-directed aggression, and apparent dissociation is deeply distressing to witness. Self-inflicted wounds from attacking the tail or flank add physical injury to neurological suffering. The unpredictability of episodes creates chronic anxiety in some cats. Managing FHS requires careful diagnostic workup to exclude treatable underlying causes before initiating long-term neurological or behavioral treatment.

What You Can Do

Consult a veterinary dermatologist and neurologist for a systematic diagnostic workup
Rule out skin parasites, food allergy, and spinal disease before assuming primary FHS
Ask your vet about gabapentin as first-line therapy for suspected neuropathic component
Implement environmental enrichment and stress reduction alongside medical treatment
Photograph or video episodes to share with your veterinarian for diagnosis