The time to recover from intestinal flora imbalance needs to be determined by the body’s constitution, age, and whether or not medication is used, and may take 1 week or 2-3 months. Intestinal flora dysbiosis is mainly caused by improper diet, weakened intestinal immune function, and the influence of medication, which leads to the imbalance of the ratio of microorganisms in the intestine. The first step in recovery is to remove the causes, such as poor dietary habits, stop using drugs that cause dysbiosis and actively treat other diseases that cause dysbiosis, and then give intestinal probiotics to correct the dysbiosis and finally achieve the ecological balance of the intestine. In general, adults with mild intestinal dysbiosis need about 1 month without medication, and may recover in about 1 week with medication. Children and elderly frail people need to use drugs to adjust, and their recovery time varies, mostly around 2-3 weeks, and a few patients may need 2-3 months. In addition, people who are prone to intestinal flora imbalance should have a diversified diet, regular rest, and reasonable use of antibiotics. Also eating fermented foods and foods containing lactic acid bacteria and bifidobacteria, such as yogurt, can help prevent intestinal flora imbalance.