Orthostatic headache
![This image shows where the Cerebrospinal Fluid (CSF) (blue) is located in the brain.](/Images/godic/202501/31/Blausen_0216_CerebrospinalSystem1426.png")
Orthostatic headache is a medical condition in which a person develops a headache while vertical and the headache is relieved when horizontal. Previously it was often misdiagnosed as different primary headache disorders such as migraine or tension headaches. Increasing awareness of the symptom and its causes has prevented delayed or missed diagnosis.