postdrom

Postdrome, in migraine terminology, refers to the period that follows the resolution of the acute headache. It is considered the final stage of the migraine attack and is distinct from the prodrome, aura, and ictal (headache) phases. The experience of the postdrome varies widely among individuals and across attacks.

Common postdrome symptoms include fatigue or lethargy, difficulty concentrating (often described as “brain fog”), mood changes, and a feeling of malaise. Some people experience neck stiffness, mild head heaviness, or sensitivity to light and sound. A minority report periods of renewed energy or relief from head pain as the postdrome begins. Symptoms typically fade within 24 to 48 hours, though some people may feel lingering effects longer.

Duration and intensity are influenced by individual factors, the migraine's severity, and any medications used during the attack. Postdromal experiences can affect daily activities, sleep, and cognitive performance, which is why recognizing this phase can help individuals plan rest and recovery.

The underlying mechanisms of the postdrome are not fully understood. They likely involve a gradual normalization of brain activity after the ictal phase, with changes in cortical excitability, brain networks, and vascular tone. While not everyone experiences pronounced postdrome symptoms, its presence is widely acknowledged as part of the migraine syndrome.

Diagnosis is clinical, based on the temporal sequence of symptoms relative to a prior migraine. Management focuses on rest, hydration, and gradual return to activity; adjustments may be discussed with a clinician if postdrome symptoms are persistent or disabling.