Electroacupuncture for Sciatica Due to Intervertebral Disc Displacement

Inclusion Criteria: * Patients who meet the clinical diagnosis of sciatica caused by intervertebral disc displacement; * Male or female, aged 18-65; * Have completed informed consent form. Exclusion Criteria: * Patients with sciatica caused by diseases such as piriformis syndrome, thickening of ligamentum flavus, acute lumbar strain, contusion, congenital spina bifid, lumbar and sacrum deformity, lumbar sacral vertebra joint disorder or proliferative osteoarthrosis; * Patients with urinary and fecal incontinence caused by acute lumbar disc herniation, huge or central type lumbar disc herniation sufferer in need of surgery; * Patients who fail to finish the basic treatment course, or have poor adherence; * Patients having a poor state, particularly unconsciousness, psychopath, severe osteoporosis, concurrent infection or bleeding susceptibly, or accompany with primary diseases in cardiovascular, digestion or hemopoietic systems and viscera as kidney, liver; * Pregnant or lactating women; * Patients in other clinical research.