Constipation on the eleventh day of frozen blastocyst transplantation can be solved by adjusting the diet structure, consuming vegetables and fruits rich in dietary fiber, such as sweet potatoes, bananas, etc., and taking medicines to promote intestinal peristalsis, such as lactulose and probiotics. Frozen blastocyst transplantation after living and living should be regular, not completely lying down, to restore a certain amount of light exercise, and adjust the dietary structure, more dietary fiber-rich fresh fruits and vegetables, such as bananas, celery, sweet potatoes, etc., usually can effectively promote the patient’s gastrointestinal tract peristalsis, improve constipation. If the diet does not improve, you can rely on laxative drugs, such as lactulose, probiotics, etc., the specific use of drugs should be carried out under the guidance of a doctor. Lactulose is an osmotic laxative, which is safer for post-transplantation, and can regulate intestinal flora, effectively assisting in relieving constipation after transplantation.