Patients with coronary heart disease should pay attention to bowel movements, as difficulty in defecation can lead to intestinal obstruction. This is especially true for elderly patients with diabetes. Additionally, straining during bowel movements can easily induce angina or even lead to myocardial infarction or sudden death. Patients with constipation should consider the following issues. Firstly, their diet should include high-fiber foods; secondly, appropriate exercise should be undertaken; thirdly, some patients may take laxatives, and currently, there are many laxatives suitable for the elderly available clinically with relatively minor side effects and good efficacy; fourthly, some patients may use enemas for prolonged constipation, but long-term use is not recommended. Besides preventing constipation, patients with coronary heart disease should also maintain a calm demeanor, avoid emotional fluctuations, and prevent overeating or vigorous activity, as these can cause insufficient blood supply to the heart, triggering angina or myocardial infarction. (Specific medications should be used under the guidance of a doctor.)