Enema is mainly inserted through the anal canal, the saline in the enema bag combined with lubricant or soap and water, cork, etc., under pressure into the rectum and colon to stimulate intestinal peristalsis, lubricate the intestine and soften the stool to promote the discharge. After the enema, you can choose the head-low-hip-high position for 5-10 min to avoid the flow of enema fluid, so that the enema fluid and feces are in full contact, softening and stimulating intestinal peristalsis to achieve a better enema effect. When the enema should be careful to control the speed of the enema should not be too fast, enema fluid from the anus preferably less than 30cm, too much pressure, will increase the stimulation of the intestinal mucosa, may lead to fecal spray during the enema. Enema can relieve constipation, but can not rely too much, improve constipation or through the adjustment of diet and change the habits of life is the main. You can pay attention to your diet, eat more food with high dietary fiber, and develop the habit of regular bowel movements. You can also take some drugs for a short time to improve constipation, such as lactulose oral solution, mosapride, linaclotide, etc.