Dog constipation is a common condition that can cause distress in your furry friend. Symptoms of constipation in dogs can include straining to defecate, hard stools, infrequent bowel movements, vomiting, bloating, and lethargy. Common causes of constipation in dogs include dehydration, dietary indiscretion, intestinal blockage, lack of exercise, and certain medications. To diagnose constipation, veterinarians may perform physical exams, radiologic imaging, and blood work. Treatment of constipation in dogs may include dietary adjustments, medications, fluids, and exercise. In severe cases, surgery may be needed to remove the obstruction.