Eat orlistat two days without defecation need not be treated, if continue to use the drug two days without defecation, may be caused by constipation, need to take general measures to regulate, if necessary, drug treatment. Orlistat can be used for the treatment of obesity and overweight people, eat orlistat two days without defecation can not be dealt with, need to be observed for two days, if two days later there is no defecation, mostly considered to be due to constipation. For patients with constipation need to drink more water, develop the habit of regular defecation, diet can eat oats, wheat bran and other coarse grains. In addition, patients with severe constipation also need to follow the doctor’s advice with wheat fiber, polycarbophil calcium and other volumetric laxatives, or lactulose, polyethylene glycol and other osmotic laxatives. It is recommended that patients take orlistat for two days without defecation do not need to worry, you can continue to observe. If there is no bowel movement after two days of observation, then you need to seek medical attention and the doctor will treat the cause.