Headache due to intracranial space occupying lesions

Headaches caused by brain tumors, subdural hematomas, brain abscesses, and other space-occupying lesions are mainly caused by the tension, displacement, or direct compression of sensory nerves near the pain-sensitive structures near the lesion. In the later period, the cerebrospinal fluid circulation pathway is blocked, resulting in increased intracranial pressure, which causes pain-sensitive structures that are far away from the lesion to be pulled, twisted, and displaced, causing headaches.