1. Active intestines. The sounds produced by the peristalsis of a cat's abdomen indicate that its intestines are very active, provided the cat's energy and appetite are normal.
2. Not eating for a long time, only drinking water. If a cat doesn't eat for a day and only drinks water, its intestines will make a sound of running water and bubbles when they move.
3. Eating a lot of raw meat. When cats eat a lot of meat, the meat takes a long time to accumulate and digest in their intestines, producing a large amount of carbon dioxide gas, which can easily cause bubbling sounds. 
4. Overeating and indigestion. If a cat's daily food intake is not controlled, and it ingests too much food at once, it will cause indigestion, which will result in a rumbling stomach.
5. Feline panleukopenia (feline distemper). If a cat is infected with feline panleukopenia, it may damage its digestive system, causing its stomach to rumble.
6. Need to defecate. Owners should give their cats more water and more fruit to help them pass gas and defecate.
7. Caused by illness. Bubbling or gurgling sounds in a cat's stomach may be caused by indigestion, internal parasites, bacterial or viral infections, etc.
What should I do if my cat's stomach makes bubbling or sloshing sounds?
1. Feed your cat appropriately. Feed them food suitable for their needs and pay attention to their digestive health.
2. The digestive system needs additional support. Owners can supplement their cats' diets with probiotics and digestive enzymes to improve their digestive function.
3. Provide appropriate exercise every day, as exercise can help cats digest food better.