The dog at home has recently had fewer bowel movements than before, has defecation movements but no stool, eats more but has less stools, and has an obvious bulge in the dog’s belly when not eating. These are all signs of dog constipation. It is a sign that the owner is advised to defecate the dog as soon as possible after discovering it. You can feed your dog more water-containing food, fruits and vegetables, and take your dog to exercise more to help with defecation.