[1] This condition is seen in dogs, cats, cows, horses, and goats.
Head pressing is usually a sign of a neurological disorder, especially of the forebrain (e.g., prosencephalon disease),[1] or of toxicity due to liver damage, such as portosystemic shunt and hepatic encephalopathy.
[2] It should be distinguished from bunting, which is a normal behavior found in healthy animals.
A liver shunt is a congenital or acquired condition that may lead to toxicity and head pressing.
Additional symptoms include drooling and slow maturation early in development.