Back pain after 33 weeks of pregnancy can be divided into the following situations: First, back muscle strain, 33 weeks pregnant weight increase, especially the pelvic weight increase, will lead to excessive forward shift of the center of gravity of the body, the back muscles in order to maintain the stability of the spine, the need for extra exertion, prone to strain resulting in localized pain symptoms, through the local muscle massage, massage, hot compresses and appropriate bed rest can be Through local muscle massage, massage, hot compress and appropriate bed rest can relieve back muscle pain. Second, back muscle myofascial inflammation, back long-term overweight caused by chronic cumulative injury, resulting in myofascial inflammation of the back, inflammation of the clinical manifestations of back pain and spasm nodules, after resting or waking up in the morning when the pain symptoms aggravated, but reduced after the activity. Treatment includes localized manual pressure, treatment to the degree of pain, continuous operation 200-400 times, daily completion of 1-2 groups, 15 days for a course of treatment.