What is a headache?
A Headache is defined as a pain in the head or upper neck. It is one of the most common locations of pain in the body and has many causes.
How are headaches classified?
Headaches have numerous causes, and in 2007 the International Headache Society agreed upon an updated classification system for headache. Because so many people suffer from headaches and because treatment sometimes is difficult, it is hoped that the new classification system will allow health care practitioners come to a specific diagnosis as to the type of headache and to provide better and more effective treatment.
There are three major categories of headaches:
1.primary headaches,
2.secondary headaches, and
3.cranial neuralgias, facial pain, and other headaches.
