Feline hyperesthesia syndrome, the over sensitive cats

Feline Hyperesthesia Syndrome, also known as "Rolling Skin Disease" or "Feline Psychomotor Epilepsy," is a rare and puzzling condition that affects cats. It is characterized by a range of unusual behaviors and physical symptoms, making it a challenging condition for both cat owners and veterinarians to understand and manage. This article aims to shed light on Feline Hyperesthesia Syndrome, exploring its causes, symptoms, diagnosis, and potential management strategies.

Feline hyperesthesia syndrome

Feline hyperesthesia syndrome (FHS) is a behavioral condition also linked to some neurological and dermatological disorders. It is also known as ‘rippling skin disease’, ‘neurodermatitis’ and ‘psychomotor epilepsy’. The main symptoms include intense scratching and licking at an area of skin. It can be a distressing problem for cats and their owners, as those cats suffering from the syndrome can self-mutilate quite badly.  

Causes

The exact cause of Feline Hyperesthesia Syndrome remains uncertain, but several factors may contribute to its development, including stress, anxiety, sensory dysfunction, or neurological issues. Some experts believe that it might be related to abnormal electrical activity in the brain.

What is feline hyperesthesia?

 

In medicine, hyperesthesia is a phrase used to describe acute sensitivity. Cats with the illness known as feline hyperesthesia syndrome (FHS) develop a skin region that is extraordinarily sensitive to touch. The cat's dramatic response to this sensitivity is frequently hostile in nature. Almost invariably, the affected area is on the back, directly in front of the tail.

This is a behavioral syndrome that is closely associated with both skin and neurological disorders, however it is believed to be a compulsive disorder. Although cats of all ages can experience it, younger cats, those between the ages of one and five, are most likely to do so. Siamese cats, along with Persian, Burmese, and Abyssinian cats, appear to be particularly susceptible, while any breed or type may be impacted.

Types of FHS can be divided into: 

  • Dermatological: allergic skin disease (including flea allergic dermatitis), food allergies, parasites, infectious dermatitis. 
  • Neurological: epilepsy, spinal disease (disk disease, myelitis), brain tumor.
  • Musculoskeletal: myositis, myopathy. 
  • Behavioral/true FHS: compulsive, displacement behavior.  

How will I know if my cat has FHS?

Feline Hyperesthesia Syndrome manifests in a variety of symptoms, which can include:

  1. Rippling Skin: Cats with this syndrome often exhibit rippling or rolling movements under the skin, especially along the back.

  2. Tail Twitching: The cat's tail may twitch involuntarily or exhibit abnormal movements.

  3. Vocalization: Cats may meow excessively or exhibit other vocalizations seemingly without reason.

  4. Agitation: Affected cats can become highly agitated, restless, and overly sensitive to touch.

  5. Self-Injury: Cats may engage in self-mutilating behaviors, such as excessive grooming, biting, or scratching their own skin.

  6. Dilated Pupils: Cats might have dilated or constricted pupils, which can be a sign of increased arousal or stress.

This condition is usually first noticed when the owner goes to stroke their cat and they react suddenly, and often negatively. The degree of reaction varies: some merely scratch or lick at the area, others intensively dig at the area, some will become aggressive and bite, seemingly without warning. A common sign is a ‘rippling’ or ‘rolling’ of the skin across the back. Affected cats may salivate, vocalize and their pupils can dilate. Owners may also notice their cats intensively licking, chewing and scratching at that area during routine grooming. Some repetitively chase their tails, or race around the house whilst loudly vocalizing, but also may urinate.  

These symptoms can all be distressing, especially as some cats can do a lot of harm to themselves by this form of self-mutilation.  

How will my veterinarian diagnose FHS?

The main aim in diagnosing FHS is to try and find an underlying cause of the hyperesthesia. True behavioral FHS is a diagnosis of exclusion: other sources of sensitivity must be ruled out. This entails carefully examining the whole cat for any underlying issue. Some diagnostic tests may be required to categorize the type of FHS. Ruling out dermatological issues may require blood tests and skin biopsies or scrapes. Neurological and spinal problems usually require imagine such as x-rays or even an MRI to find.

A thorough history and discussion about the cat’s home environment will be very helpful to investigate behavioral causes. Displacement behaviors usually arise when there is a conflict in behaviors: the cat wants to perform one behavior (such as eating), but is prevented by something (such as another cat in the household), and so is frustrated and performs an unrelated behavior (such as grooming) as a coping strategy. If this cycle is repeated over and over, it becomes compulsive and no longer related to the original conflict.  

How is FHS treated?

While there is no specific cure for Feline Hyperesthesia Syndrome, several management strategies can help improve the cat's quality of life:

  1. Stress Reduction: Creating a calm and stable environment can help reduce stress, which may exacerbate the symptoms. Providing a safe space, routine, and minimizing changes in the cat's environment can be beneficial.

  2. Behavioral Therapy: Positive reinforcement techniques and environmental enrichment can help redirect the cat's focus and reduce anxiety.

  3. Medications: In severe cases, veterinarians may prescribe anti-anxiety medications or anti-epileptic drugs to manage the cat's symptoms. These medications should only be used under veterinary supervision.

  4. Dietary Modifications: Some cats may benefit from a balanced diet that includes supplements like omega-3 fatty acids, which have anti-inflammatory properties and may support overall brain health.

  5. Regular Veterinary Check-ups: Cats with Feline Hyperesthesia Syndrome require regular monitoring by a veterinarian to assess their overall health and adjust the management plan as needed.

The goal of FHS treatment is to make sure the cat is comfortable and has a decent quality of life rather than necessarily curing them. Treatment for an underlying cause, like allergic dermatitis, or a source of pain, like spinal arthritis, should significantly lessen symptoms.

Ensuring that there is no underlying itching is a crucial aspect of controlling FHS. Grooming by itchy cats can lead to instances of compulsive behavior. A cat with FHS may benefit from strict parasite management, nutritional modification if needed, and medication to lessen skin irritation as part of their treatment plan. Anti-seizure medicine may be useful if a neurological cause, such as epilepsy, is suspected.

Treatment options may be varied if an underlying cause of itching or pain cannot be identified and a behavioral explanation is thought to be the reason. Behavioral treatment could involve changing the surroundings, including designating a "safe zone" in the cat's house or setting feeding schedules. Developing coping mechanisms can also benefit from the process of recording experiences to pinpoint "triggers." Since FHS is believed to be associated with stress and/or anxiety in cats, anxiety-reducing medications may potentially be helpful.

Will my cat recover?

 

Most of the time, managing feline hyperesthesia is more important than curing it. The prognosis for management is impacted by the wide variations in the severity of the illness. Treatments that are specifically aimed at addressing the source of hypersensitivity could be required. With proper care of their conditions, many cats can lead happy, active lives well into their later years. Treatment aimed at lowering stress and anxiety—which seem to contribute to the cat's hyperesthetic reaction—will frequently be viewed as a symptomatic strategy if no underlying illness is found.

Conclusion

Feline Hyperesthesia Syndrome is a complex and enigmatic condition that demands patience, understanding, and close collaboration between cat owners and veterinarians. While it may not have a definitive cure, with appropriate management strategies and a supportive environment, affected cats can lead fulfilling lives. Cat owners should remain observant, seeking veterinary advice promptly if they notice any unusual behaviors or symptoms in their feline companions. Through proper care and attention, the challenges associated with Feline Hyperesthesia Syndrome can be minimized, allowing cats to enjoy a good quality of life.