一、在怀孕期间的妇女,大笑时会使腹部猛烈抽搐,容易造成早产或流产。二、小孩在进食时。三、曾经受过胸腔、腹腔、血管心脏等外科大手术者,应让其宁静修养,一般在五至七天内不可大笑。 First, women during pregnancy, laughter will make violent convulsions of the abdomen, likely to cause premature birth or miscarriage. Second, when children eat. Third, once received thorax, abdominal cavity, vascular surgery and other major surgery, should let their quiet self-cultivation, generally not be laughed in five to seven days.