Constipation is mainly characterized by reduced frequency of bowel movements and difficulty in defecation, and does not usually cause swelling of the lower legs. Common causes of constipation include poor dietary habits, insufficient exercise, and slow gastrointestinal peristalsis, which leads to the accumulation of food residues in the intestinal tract, making it difficult to expel them. Patients mainly manifest as laborious defecation, poor defecation, incomplete defecation, reduced frequency of defecation, dry stools, and more rapidity. However, the phenomenon of calf swelling does not usually occur. Swelling of calves is considered to be related to prolonged standing and sitting, slowing down of local blood circulation, varicose veins of the lower limbs, cirrhosis of the liver, etc., and is generally not considered to be caused by constipation. Reduced frequency of bowel movements, difficulty in defecation, or prolonged absence of bowel movements, it is recommended to visit the gastroenterology department of the hospital in a timely manner to understand the causes of constipation. If there is swelling of the lower legs, it is recommended to go to the hospital for examination to find the cause and give treatment according to the cause.