What disease is direct excretion without digestion when eating

Food not digested direct excretion may be caused by indigestion, gastrointestinal autonomic nerve disorder, gastritis and other diseases, as follows:

If the patient eats too much or eats a lot of indigestible food at one time, it may lead to increased burden on the gastrointestinal tract, causing indigestion and direct excretion without digestion. In clinical practice, it may also be caused by gastrointestinal autonomic nerve disorder caused by emotional, dietary and other factors. Abnormal nerve function may lead to incomplete digestion and excretion. In clinical practice, it may also be a disease of gastritis. Inflammation stimulation during gastritis may affect gastrointestinal motility, and direct excretion without digestion may occur.