There may be the following reasons for cats to defecate randomly at home:

1. Cat litter box problems

There may be problems with the cat’s litter box, such as Improper location makes it difficult for cats to reach; the size of the litter box is not suitable for cats; the litter box is not clean enough and cats are unwilling to defecate in it.

2. Causes of disease

Cats may not be able to use the litter box properly due to certain diseases, such as Digestive system diseases such as diarrhea and constipation, or urinary system diseases, may cause cats to poop randomly at home.

3. Psychological stress

Cats may feel anxious or stressed for some reasons, such as new members (people or pets) coming to the home; changes in the environment, such as moving or new homes. Adding more furniture; or the cat's own emotional problems, such as frustration, may cause the cat to poop randomly at home.