After the lung abscess is cured, it should be noted that there is still an abscess cavity in the lung after all, and the abscess cavity is not the normal lung tissue. Infection. Also, because the abscess cavity is an unstable and destructive change of the lung, in many cases there will be bleeding in it, one is after the recovery from inflammation, because the heat is not cleared or the heat at that time is more powerful when it triggers yin deficiency, which may lead to structural instability inside the abscess cavity. After some causes of irritation triggering violent coughing, it is easy that there will be bleeding in the cavity wall, once bleeding, the pus cavity is very easy to grow mycobacterial type of infection, grow mycobacterial balls, so pay attention to that, this is all the condition that used to occur in patients with lung abscess. Once this happens, it is basically necessary to do surgery to cut out the abscess cavity, because nowadays local lesions are actually removed with thoracoscopic surgery, so if the abscess cavity is relatively large, surgery is still recommended to remove it.