Senna belongs to a laxative, after using more water can quickly relieve constipation, but easy to cause gastrointestinal tract dysfunction, so that diarrhea aggravated, there may be dehydration. Long-term drinking senna is likely to cause difficulty in defecation, dependence and aggravation of constipation, not recommended for long-term use, and will easily cause colon melanosis, over time there may be colon polyps, colon cancer. It is not recommended that patients with constipation drink senna for a long time, and it is recommended that diet, exercise and medication be used to regulate it. In terms of diet, pay attention to the intake of more fibrous vegetables and fruits, pay attention to exercise and drink more water. You can take lactulose, Fu Zheng Li Qi Compound, compound polyethylene glycol electrolyte for laxative treatment, and also take probiotics for long-term comprehensive management.