Headache 101

Headaches can feel different for everyone. But even though there are many kinds, headaches can be grouped into two main categories: primary and secondary. Read on to learn more about each.


What are the types of headaches?

Primary headaches can be caused by a combination of temporary changes in the brain chemistry, nerves, blood vessels and muscles in and around your head and neck. You don’t have to have a cold or the flu to get a primary headache.


A secondary headache can be blamed on something else, like the flu. Whatever illness you’re suffering from may be triggering the pain-sensitive nerves that are in and around your head.


Secondary headaches can sometimes point to a more serious, underlying illness. See When Should I Call My Doctor to see if you need medical help.