Dorsal intubation and drainage, generally for thoracic puncture tube drainage, common puncture location for the subscapular angle of the scapula under the 1~2 intercostal space, except for ultrasound localization of the puncture, after the tube needs to be observed pleural fluid (stays in the thoracic cavity of the accumulation of fluids) of the color, nature, amount, the patient’s symptoms and so on. Drainage tube in the back, may also be after thoracolumbar spine fracture surgery, drainage fluid is usually bloody fluid, often be removed after 24~48 hours. After incision of some back abscesses, drainage tubes can also be placed to promote wound healing. If there is a large amount of fluid in the abdominal cavity, it is necessary to perform abdominal puncture, and there are several points for abdominal puncture, including the intersection of the umbilicus level and the anterior axillary line or the mid-axillary line when lying on the side; the intersection of the umbilicus and the consecutive center of the anterior superior spine of the left iliac spine and the outer 1/3 of the umbilicus or the intersection of the umbilicus and the consecutive center point of the pubic symphysis, which is 1cm above, 1.5 cm to the left or to the right of the umbilicus. The decision of which puncture point to choose should be made by the operating physician. When there is intubation and drainage in the back, the doctor should be informed promptly when discomfort occurs.