Causes of back pain after seizure include muscle spasm, trauma, fasciitis, etc. 1. Muscle spasm: if you suffer from grand mal epilepsy, the onset of muscle spasm will occur, which will cause muscle strain, and the patient may have symptoms of back pain after the seizure. 2. Trauma: If the patient has impaired consciousness when having a seizure and falls and suffers from trauma, back pain may appear after the seizure, according to the patient’s examination and back imaging examination to clarify the cause of the disease and then treatment. 3. Fasciitis: If the patient has a history of fasciitis in the back, back pain may also occur after seizures. If you have a history of back pain, you may also experience back pain after having a seizure. You should improve the relevant auxiliary examinations under the guidance of your doctor to determine the cause of the pain and then treat it.