Feline hyperesthesia symptoms: Can my cat's jumper make them worse?
Hello, and thank you for using PetCoach. I can understand why this syndrome may be confusing - as it's still a fairly poorly understood disorder. Hyperesthesia simply means "abnormally sensitive", but in cats it usually refers to sensitivity of the skin along their back. These cats often exhibit a strange twitching of the skin, and may suddenly take off running as if frightened or painful. There isn't a test for this condition, so your vet will develop a suspicion based on observations during an exam, your description of whats happening at home, and often taking a video of an episode can be very helpful. The cause is not completely well understood, but there is some belief that these could be related to focal seizure activity, due to the fact that many cats will respond well to seizure medication.
If Mars does have hyperesthesia syndrome, it is possible that wearing a jumper could make it worse. I recommend having Mars examined by your vet to determine if it's worth doing a trial of medication for hyperesthesia syndrome Feel free to request a consultation if you'd like to discuss it in more detail.
Finally, you may have come across this page in your searching but there's some good information here:
https://healthypets.mercola.com/sites/healthypets/archive/2012/04/04/feline-hyperesthesia-symptoms.aspx
Hope this helps!
Updated on September 23rd, 2025