Disease Guide

Feline Polioencephalomyelitis (Feline Poliomyelitis) in Cats: Seizures, Gait Abnormalities & Neurological Care [2025]

A viral encephalomyelitis in cats with a guarded prognosis

Last updated: 2026/01/17
Pethealthmap Editorial Team
Sources: ISFM, ACVIM, National Taiwan University Veterinary Hospital

When to See a Vet

Seek immediate emergency care

  • Seizure lasting more than a few minutes and unable to stop
  • Sudden prolonged loss of consciousness with no apparent response
  • Blue or purple lips or gums, or difficulty breathing

Schedule a clinic visit soon (within 24–72 hours)

  • Increasing frequency of seizures with shorter intervals between episodes
  • Noticeable unsteadiness while walking or frequent falls
  • Significant decrease in alertness and appetite, or excessive drowsiness

01What symptoms indicate something is wrong?

This type of neurological disease typically presents with seizures and impaired motor coordination, often accompanied by changes in mental status and sensory responses.

  • Seizures: generalised or focal involuntary muscle contractions
  • Unsteady gait, frequent falling, or altered stepping rhythm
  • Head tilt, neck stiffness, or generalised muscle weakness
  • Lethargy, reduced response to sound or light, or excessive drowsiness
  • Nystagmus (rapid involuntary eye movement) or unequal pupil sizes

Seek emergency care immediately if you notice the following symptoms:

  • ⚠️ A seizure lasting several minutes that does not stop on its own
  • ⚠️ Sudden prolonged unconsciousness with no response to stimulation
  • ⚠️ Blue or purple discolouration of the lips or gums, or difficulty breathing

02What should you look for at home, and when is it an emergency?

Systematic home observation and detailed notes help your vet pinpoint the problem quickly and arrange appropriate diagnostic tests.

  • Record the time, frequency, and duration of each episode
  • Film seizures or abnormal gait from the front and side using your phone
  • Monitor for changes in alertness, interaction, and response to stimulation
  • Note any changes in appetite, water intake, and urination or defecation
  • Weigh your cat weekly and track any recent gains or losses

03How will the vet reach a diagnosis? Common diagnostic tests

The vet will begin with a physical and neurological examination, supplemented by blood tests and imaging where necessary to identify the underlying cause.

Physical and neurological examination to localise lesions in the brain or spinal cord

Blood count and biochemistry panel to rule out metabolic or infectious causes

Urinalysis to assess kidney function and electrolyte status

Radiographs of the skull or related structures; advanced imaging (CT or MRI) if indicated

Cerebrospinal fluid (CSF) analysis when needed to support the diagnosis

04What treatment and home care are needed? Medications, diet, and care guidelines

Treatment depends on the underlying cause; seizure control and scheduled recheck visits are central to monitoring recovery.

  • Cause-directed and symptomatic treatment to control seizures and reduce inflammation
  • Dietary management and weight monitoring to support overall health and recovery
  • Home environment modifications to reduce the risk of falls or injury
  • Regular follow-up appointments and repeat imaging or testing as directed by your vet
  • Referral to a veterinary neurologist for severe or recurring cases requiring further evaluation

05What should you bring to the appointment? Key information to help your vet

1
Bring a written log of each episode: time, frequency, and duration
2
Prepare phone videos of seizures or abnormal gait filmed from the front and side
3
List all current medications, supplements, and any known allergies
4
Note any recent changes in appetite, water consumption, and litter box habits
5
Bring previous test results or imaging files if available for comparison

This content is for reference only and cannot replace a professional veterinary diagnosis. If your pet shows signs of illness, please seek veterinary care promptly.

Frequently Asked Questions (FAQ)