A cat's stomach growling may be bowel sounds caused by indigestion or stress reaction. First, observe the cat's mood and do not put too much mental pressure on the cat. This is especially true for cats who have just arrived in a new home. If it is a stress reaction, it is best not to disturb or scare it at this time, and let it wait quietly by itself; if it is caused by indigestion, you can feed the cat some probiotics and water to promote digestion.