SHADOW OR LIGHT CHASING (COMPULSIVE)
WHAT THIS SYMPTOM USUALLY MEANS
Shadow or light chasing can indicate compulsive behavior, high anxiety, or early neurological dysfunction. It is common in high-drive breeds.
MOST COMMON CAUSES
MILD
• Playfulness
• High prey drive
• Learned behavior from laser pointers
MEDICAL CAUSES
• Compulsive disorder
• Anxiety
• Seizure-like episodes
• Pain increasing stress behaviors
EMERGENCY CAUSES
• Frantic, uninterruptible chasing
• Chasing + collapse
• Chasing + disorientation or drooling
RED FLAGS
• Inability to stop
• Occurs daily for long periods
• New onset in older pets
If you’re unsure, treat it as urgent.
AT-HOME CARE YOU CAN START NOW
• Discontinue laser toys
• Provide structured play
• Limit overstimulation
WHAT A VETERINARIAN WILL CHECK
• Neurological function
• Pain and spinal exam
• Anxiety/compulsive profile
MOST LIKELY DIAGNOSES
• Compulsive disorder
• Anxiety
• Partial seizures
BREEDS AT RISK
• Border Collies
• Aussies
• Terriers