The basic pathology is the stagnation of qi in the middle jiao, and the failure of the spleen and stomach to lift and lower the body. Patients with dietary stagnation show distention and fullness of the epigastrium, belching and swallowing of acid (swallowing of acid from the stomach upward to the oropharynx), and anorexia. Patients with phlegm-dampness stagnation manifest as distension and fullness in the epigastrium, heavy and sleepy body, dullness (no appetite, reduced food intake), vomiting, pale mouth without thirst, and dysuria (unsmooth urination). Damp-heat obstruction (accumulation of dampness and heat to form stagnation) is characterized by distention and fullness in the epigastrium, nausea and vomiting, and bitterness in the mouth. Liver-stomach disharmony (disharmony between the ascending function of the liver and the descending function of the stomach and internal organs) is characterized by distention and fullness in the epigastrium, discomfort in the chest and ribs, and a tendency to tai shi, which is often aggravated by emotional factors. Patients with weakness of the spleen and stomach show distention and fullness of the epigastrium, a preference for warmth and pressure, tiredness (fatigue), and lack of energy and laziness (lack of strength, not wanting to talk). Patients with deficiency of stomach yin are characterized by distention and fullness of the epigastrium, hunger, dry mouth and throat. If discomfort occurs, you should consult a doctor in time to avoid self-medication, which may affect your health.