Post dural puncture headache is a complication that can occur after a lumbar puncture or spinal anesthesia procedure. It is caused by leakage of cerebrospinal fluid through the puncture site in the dura mater, resulting in a decrease in intracranial pressure. Risk factors include being young, female, having a history of migraines or prior PDPH. Symptoms include frontal or occipital headache that worsens with upright position and improves with lying down. Treatment options range from bed rest, fluids and medications to more definitive treatments like epidural blood patch.