A constipated dog will be very uncomfortable, and will most likely let you know. Early identification signs are very important for discovering if your dog is suffering from constipation. Most dogs are intelligent enough to give their owners some visible clues that something is wrong.
Possible behavioral signs of constipation in your dog include excessive whining, difficulty walking, and refusal of food. Even though some people may see it as a minor problem, constipation in dogs can lead to hemorrhoids (swollen veins in your dog's rectal area) as well as many other problems. This can be very painful for your pet, and make treatment of this condition much more difficult.