Postpartum back pain can be identified through clinical manifestations, specifically can be divided into cold and damp paralytic obstruction type, stagnation of qi and blood stasis (because of the lack of qi leads to blood stasis) type, kidney deficiency and blood deficiency type and other types of evidence. 1. Cold-dampness paralytic obstruction type: post-partum qi and blood insufficiency leads to weakness, cold-dampness evil qi takes advantage of the weakness and enters, paralyzing the meridians and causing lumbar pain. Clinical manifestations may be more intense pain, stiffness, pain aggravated by cold, appropriate warmth can reduce lumbago. 2. Qi stagnation and blood stasis type: The poor discharge of evil dew after delivery leads to Qi stagnation and blood stasis, causing low back pain. Clinical manifestations may be swelling pain or pain like pins and needles, the pain is fixed, may also be accompanied by lower abdominal pain and other symptoms. 3. Kidney deficiency and blood loss type: excessive blood loss during labor leads to kidney deficiency and blood loss, and the loss of nourishment of the veins and channels causes lumbago. Clinical manifestations generally include unrelenting lumbar pain, lumbar and knee soreness and weakness (the feeling of soreness and weakness in the waist and knees) and weakness, which may be accompanied by dizziness and tinnitus, yellowish color, numbness of the hands and feet, and other symptoms. The appearance of postpartum back pain should be timely consultation, under the guidance of the doctor to clarify the diagnosis, diagnosis and treatment, do not blindly deal with their own.