Post-lumbar puncture headache.
D000367:Age Factors; D002555:Cerebrospinal Fluid / Q000502:physiology; D004824:Epidural Space; D005260:Female; D006261:Headache / Q000209:etiology* / Q000628:therapy; D006801:Humans; D009339:Needles; D011247:Pregnancy; D011644:Puerperal Disorders / Q000209:etiology; D013129:Spinal Puncture / Q000009:adverse effects*