Headache after painless labor is considered to be caused by over exertion during labor or due to low cranial pressure, which requires symptomatic treatment. 1. Excessive exertion: During labor, the mother needs to exert herself to increase the abdominal pressure to help the fetus to be delivered smoothly, therefore, if the labor process is long or the mother exerts herself excessively, headache symptoms will easily appear after delivery. Don’t worry too much, usually after resting, headache symptoms can be relieved. 2. Low cranial pressure: painless delivery belongs to the lumbar anesthesia, if the mother after anesthesia did not press the injection site, it may lead to cerebrospinal fluid outflow, resulting in lower cranial pressure, headache symptoms. Generally do not worry too much, the mother can drink some saline water, if the effect is poor, can be in the intravenous rehydration therapy. If necessary, it is necessary to improve the cranial MRI to clarify whether there is venous sinus thrombosis. Therefore, maternal headache after painless labor, generally do not worry too much, may be due to excessive force, cerebrospinal fluid outflow caused by low cranial pressure. Generally do not worry too much, rest and rehydration can be effectively relieved. If the headache symptoms persist, it is recommended to check the cranial nuclear magnetism to clarify whether there are other problems.