Straining to poop
Passing very small amounts of dry, hard stool
Going longer than usual without a bowel movement
Crying, whining, or showing discomfort while trying to defecate
Repeatedly squatting with little or no stool produced
Reduced appetite
Lethargy
Swollen or firm abdomen
Vomiting
Licking the rear end more than usual
Avoiding normal bowel movements
Signs of pain when the belly is touched
Small amounts of liquid stool or mucus coming out
History of swallowing bones, toys, hair, or other foreign objects