Headache: What It Is, Types, Causes, Symptoms Treatment What is a headache? A headache is a pain in your head or face that’s often described as a pressure that’s throbbing, constant, sharp or dull Headaches can differ greatly in regard to pain type, severity, location and frequency
Headache Causes - Mayo Clinic Headaches are generally classified by cause: A primary headache is caused by overactivity of or problems with pain-sensitive structures in your head A primary headache isn't a symptom of an underlying disease
Headache - National Institute of Neurological Disorders and Stroke Headaches can range in frequency and severity of pain Some individuals may experience headaches once or twice a year, while others may experience them more than 15 days a month Some headaches may recur or last for weeks at a time
Headache - Johns Hopkins Medicine Headaches are classified as primary or secondary A primary headache means the headache itself is the main medical problem, although other factors, such as muscle tension or exposure to certain foods, may be identified Other contributing factors include medicines, dehydration, or hormone changes