Chronic migraine is a neurological condition characterized by frequent headache attacks, occurring 15 or more days per month for at least three months. These headaches can last from 4 to 72 hours and may be accompanied by symptoms such as nausea, sensitivity to light, and sound. Chronic migraine can significantly impact daily activities and quality of life. The exact cause of chronic migraine is not fully understood, but it may involve genetic, environmental, and lifestyle factors. Treatment options include medications for pain relief and preventive measures, as well as lifestyle changes to help manage triggers and reduce the frequency of attacks.