TL;DR: Continuous full-body trembling in cats is a life-threatening emergency that requires immediate veterinary care. Recording a brief video of the episode can help your vet quickly diagnose the underlying cause, such as poisoning or neurological distress.
What causes continuous body trembling in cats?
Continuous, full-body trembling in cats is a distressing symptom that can stem from various serious conditions, including neurological disorders, exposure to toxins, severe pain, or metabolic imbalances. Unlike occasional shivering due to cold, continuous tremors suggest that the nervous system is under significant stress or that there is an involuntary muscle reaction to an internal medical crisis.
How urgent is it if my cat is trembling continuously?
- Continuous full-body trembling is a high-priority medical emergency.
- This behavior often signals a life-threatening situation such as poisoning, hypoglycemia, or an impending seizure.
- Do not wait for the symptoms to pass; immediate veterinary intervention is required to stabilize your cat.
- Prompt treatment is necessary to identify the root cause and prevent permanent damage or loss of life.
Why should I take a video of my cat's trembling for the vet?
- If it is safe to do so, capture a brief (10-15 second) video of the trembling as an invaluable tool for your veterinarian.
- Cats often experience a surge of adrenaline during transport which may temporarily mask the tremors by the time you arrive at the clinic.
- A recording provides the medical team with a clear visual of the episode to help differentiate between tremors, seizures, or ataxia.
- This visual evidence ensures a faster and more accurate diagnosis.
Clinical Context (Merck Veterinary Manual)
Trembling or shivering in cats can be caused by exposure to certain chlorinated hydrocarbon insecticides such as DDT, DOD, endosulfan, lindane, and methoxychlor, with large doses causing progressive involvement leading to convulsions and death. When handling a trembling cat, it is vital that the owner adequately restrain the pet before starting any first aid procedures to ensure safety. Motion of the head, neck, and spine should be minimized when moving the animal, using a flat, firm board for support, and radiographs can be taken through these materials. Depending on examination findings, cats may be treated for hypocalcemia, organophosphate toxicity, thiamine deficiency, or sepsis. Traumatic injuries should be addressed with fluid therapy, respiratory support (doxapram), and pain management (buprenorphine or meloxicam), followed by corrective therapy.
Chapter: Toxicology
Source: The Merck Veterinary Manual, 11th Edition (Page 3062)