Typical changes in the tongue image of the Liver-Qi Stagnation (poor Qi and blood transportation in the liver, emotional depression) syndrome are cloudy foam, froth, and bubbles on both sides of the tongue. Most of the consequences of Liver-Qi Depression are uncomfortable symptoms caused by Qi stagnation and Blood stasis (stagnation of Blood due to unobstructed flow of Qi), and over time, even the formation of tangible lumps. Clinical symptoms of Liver-Qi Stagnation are commonly mental depression, chest tightness, stomach distension, distension and pain in the coats of arms and ribs, loss of appetite, or obstruction of the pharynx by a foreign body, and in women, pre-menstrual breast distension, dysmenorrhea, menstrual disorders, and cloudy foam, froth, and bubbles on both sides of the tongue. Liver qi stagnation is usually due to emotional disorders, feeling of external evils, improper use of medication and so on. If treated as early as possible, the prognosis is usually good. If not treated in time or improperly medicated, pathological products such as phlegm and drink (pathological products formed by impaired metabolism of water and liquid), blood stasis, and food accumulation (accumulation of food in the stomach due to indigestion of food) may appear, leading to deficiency or dysfunction of internal organs in the long run and increasing the difficulty of treatment. When patients have symptoms of liver qi stagnation, they should consult a doctor in time and standardize the treatment under the guidance of professional physicians to identify the symptoms.