Thinning stool generally refers to diarrhea. Frequent diarrhea may be related to poor dietary habits, food poisoning or allergy, acute gastroenteritis, etc. It can be relieved by improving the dietary habits and taking medicines such as belladonna tablets, montelukast, loperamide hydrochloride capsules, etc. as prescribed by the doctor. 1. Bad dietary habits: frequent diarrhea may be caused by eating frozen food or indigestible or unclean food. It is recommended that patients should develop good dietary habits, eat some easy-to-digest food, avoid eating cold and greasy food or food containing too much fiber. Usually should also pay attention to drink more water, chewing and swallowing slowly, in order to help the body digestion and absorption. 2. Food poisoning or allergy: food poisoning can also lead to abdominal pain and diarrhea symptoms, you can take belladonna tablets and other medications as prescribed by the doctor, and patients with allergic symptoms also need to be treated with antihistamines such as diphenhydramine hydrochloride tablets and loratadine tablets. When the diarrhea is serious, montelukast should be taken to relieve the symptoms. 3. Acute gastroenteritis: acute gastroenteritis patients will generally appear nausea, abdominal pain, diarrhea and other symptoms, patients can follow the doctor’s instructions to take Saccharomyces boulardii, bifidobacterium tetrads and other microbial preparations for treatment, and at the same time to take antidiarrheal medicines, such as loperamide hydrochloride capsules, to alleviate the symptoms. Patients with symptoms of frequent diarrhea should go to the hospital in time for examination to identify the cause of the disease and treatment. Drugs should be taken under the guidance of a doctor, and should not be used privately to avoid adverse reactions.