What distinguishes a classic migraine from a common migraine?

A classic migraine is characterized by the presence of an aura, which typically manifests as visual disturbances, sensory changes, or other neurologic symptoms that precede the headache. This aura phase can last from a few minutes to about an hour and provides a warning sign for the individual. In contrast, a common migraine does not have this aura phase and consists primarily of headache symptoms without those preceding sensory changes or disturbances.

This distinction is important in clinical practice as it helps in diagnosis and treatment strategies for individuals who experience these types of migraines. Understanding this difference can also guide individuals in identifying the specific type of migraine they are experiencing, which can be crucial for effective management. Thus, the presence of aura as a defining feature of classic migraine is what distinguishes it from common migraine.