Postoperative oozing after osteomyelitis is generally a normal phenomenon, but also need to be based on the nature of the ooze, the amount of ooze and the accompanying symptoms of specific judgment. After osteomyelitis debridement surgery, if the exudate is high in leukocytes, or even has pus cells, accompanied by pus, local skin temperature, pain, accompanied by high fever, etc., no matter how much the amount of pus is, this exudate is an abnormal phenomenon, and further drainage and antibiotic treatment are needed. Postoperative exudate is clear, the white blood cells belong to the normal range of values, the local skin temperature is normal, no pain, no fever, if the amount of exudate is large, the amount of exudate has not been reduced for about 1 week, it is an abnormal phenomenon. If the amount of exudate is medium or small, and the exudate gradually decreases or disappears in 1 week or so, without accompanying symptoms, this exudate is a normal phenomenon. Post-operative oozing of osteomyelitis is recommended to actively seek medical advice and treatment under the guidance of a physician.