Feline hyperesthesia syndrome, also known as rolling skin disease, is a rare illness in domestic cats that causes episodes of agitation, self-mutilation, and a characteristic rippling of the skin when touched. It is often described as a seizure disorder but the cause is unknown.
During an episode cats show a number of typical signs, including skin rolling or twitching, self-directed pouncing, or aggressive behaviour such as biting or attacking the tail. There may also be pupil dilation, vocalisation and a general increase in activity.
Feline cystitis is associated with feline urological syndrome, feline lower urinary tract disease, and feline idiopathic cystitis. Feline cystitis means "inflammation of the bladder". The term idiopathic translates to unknown aetiology (causation). This is because the direct cause of feline cystitis is unknown; however, certain behaviors have been known to aid the illness once it has been initiated. It can affect both males and females of any breed of cat. It is more commonly found in females cats; however, when males do exhibit cystitis, is it usually more dangerous.
A common nickname for this type of illness is "crystals". This is because tiny crystal or sand like particles form within the urine. This can be treated. If this illness trails on too long then the cat's life may be at risk.]citation needed[ This is why it is important to pay attention to the behavior of one's cat, especially if noticeable differences in their behavior have occurred.
Hyperesthesia (or hyperaesthesia) is a condition that involves an abnormal increase in sensitivity to stimuli of the sense. "When a non-noxious stimulus causes the sensation of pain the area will be termed hyperaesthetic". Stimuli of the senses can include sound that one hears, foods that one tastes, textures that one feels, and so forth. Increased touch sensitivity is referred to as "tactile hyperesthesia", and increased sound sensitivity is called "auditory hyperesthesia". Tactile hyperesthesia may be a common symptom of many neurologic disorders such as herpes zoster, peripheral neuropathy and radiculopathies. In 1979, and then in 1994, Merskey, Bogduk, Noordenbos, Devor and others (a subcommittee of International Association for the Study of Pain) proposed, instead of hyperaestheia, the concept of allodynia, meaning "other pain", defined as a pain resulting from a stimulus that does not normally provoke pain.
Feline Hyperesthesia Syndrome is an uncommon but recognized condition in cats, particularly Siamese, Burmese, Himalayan, and Abyssinian cats. It is also a symptom in dogs that have canine distemper disease (CD) caused by canine distemper virus (CDV).