Pain felt within the skull. Most headaches are caused by stress or tension, but some may be symptoms of brain or systemic disease, including fever.
Pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs; SYN. head ache, cephalalgia.
Pain felt within the skull. Most headaches are caused by stress or tension, but some may be symptoms of brain or systemic disease, including fever.
Pain in the head caused by dilation of cerebral arteries or muscle contractions or a reaction to drugs; SYN. head ache, cephalalgia.