A kitten that has diarrhea but is in a good mental state may be caused by indigestion, stress reaction, or gastrointestinal disease. It needs to be judged based on the kitten's own situation. Kittens have a sensitive gastrointestinal tract. Improper diet or a sudden change of food may cause gastrointestinal discomfort in cats. Try to feed them easy-to-digest foods such as liquid food, and feed an appropriate amount of probiotics to help digestion; kittens will also react to the stress of a new environment. If it causes diarrhea, you need to observe the cat's condition and not scare the kitten; if it is caused by gastrointestinal disease, it needs to be checked and treated in time, and dewormed on time.