While the occasional bout of constipation is perfectly normal once in a while, we are meant to have a daily bowel movement. (natural-parenting-advice.com)
My son had one bad bout of constipation and after that, he didn't want to poop at all because he was afraid it would hurt. (thestir.cafemom.com)
As is the case with diarrhea, you don't need to worry if your cat has an occasional, brief bout of constipation. (petsmagazine.com.sg)