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Headaches can vary significantly in number of ways, including:
A primary headache is when the headache itself is the main problem. It is not a symptom of an underlying disease or condition. While the pain from primary headaches can be disabling, the headaches are not dangerous. The brain cannot feel pain, so the pain associated with primary headache comes from the inflammation of pain-sensitive parts of the body in and around the neck and head, including:
There are several categories of primary headaches. Some of the most common types of primary headaches include:
A secondary headache is caused by another condition that triggers pain-sensitive areas in the neck and head. Secondary headaches are rare, but they can also be much more serious than primary headaches. Secondary headaches can be a warning sign of a more serious underlying condition, including: