There are a variety of medical conditions that can cause your cat to begin head pressing. The following are some of the most commonly diagnosed in domestic felines:
Brain Tumors
Brain tumors are a primary cause of head pressing in cats. Tumors that begin in the brain are known as primary tumors. Those that begin elsewhere in the body and spread to the brain are called secondary tumors. In addition to head pressing, cats with brain tumors may also have seizures and tenderness around the skull.
Disorders Of The Metabolism
Cats with metabolic diseases such as hypoglycemia may exhibit head pressing. These disorders can begin at birth or later on in life.
Poisoning
Cats can get into a number of toxic substances in and around the house that can cause many symptoms, including pressing the head. In addition, they can also cause immunodeficiencies, cancer, liver disease and other neurological problems.
Liver Problems
Liver shunts are not common in cats, but when they occur head pressing may follow along with them. Cats that have this condition have impeded blood flow to the liver.
Prosencephalon Disease
This disease primarily affects the forebrain and thalamus of the cat's brain. It can cause head pressing, seizures and many other neurological symptoms.
Infection
Your cat can acquire serious infections that can cause head pressing as a primary symptoms. Rabies, fungal infections, viruses and parasitic infections are a few types of infections that can occur.
Encephalitis
Encephalitis is caused by inflammation of the brain, which can cause many adverse affects in your cat. Along with head pressing your cat may also have difficulty functioning and be lethargic.