Vertigo caused by phlegm-dampness obstruction is due to phlegm-dampness trapped in the spleen and stomach in the middle jiao, the spleen and stomach can not transport and transform the malfunction, resulting in the clear yang can not rise to glorify the head and eyes, and the turbid yin can not descend to the middle jiao, so it causes the rotation of vision, dizziness, dizziness, head heavy as a bundle of self-awareness of the symptom, often accompanied by tightness in the chest and nausea, vomiting phlegm and saliva, less food and sleepiness, the tongue coating is white and greasy, the pulse is moist and slippery, and so on. The cause of phlegm-dampness obstruction (phlegm-dampness stays in the spleen and stomach) is mostly due to excessive alcohol consumption or overindulgence in fat, sweet and thick flavors, resulting in the weakness of the spleen and stomach and the failure of transportation and digestion, the spleen is the source of qi and blood biochemistry, and the spleen is out of balance (the spleen’s function of transportation and digestion is dysfunctional), and water-dampness, phlegm and turbidity are trapped in the middle Jiao, resulting in the failure of the clear yang to rise (the light and clear yang qi is not able to rise), and the loss of nourishment of the head and the orifices. Its clinical manifestations are mostly dizziness, dizziness, head heavy as a wrap of self-awareness, often accompanied by chest tightness and nausea, vomiting phlegm and saliva, less food and more sleep and other phlegm-dampness in the obstruction of the phenomenon. The main points of its identification, dizziness, head heavy dizziness, white tongue, pulse moistening and slippery. The principle of treatment is to strengthen the spleen, resolve phlegm, dispel dampness and harmonize the stomach. The commonly used formula is Semixia and Atractylodes Macrocephalae Tianma Tang. To summarize, the pathogenesis of phlegm-dampness obstruction is that phlegm-dampness is trapped in the middle jiao, the clear yang does not rise, the turbid yin does not descend, the phlegm and turbidness upward disturbance (phlegm evils upward invasion of the head), obscuring the clear orifices (obscuring the mouth, eyes, nose, and ears of the 7 orifices), causing dizziness. If you have any of the above symptoms, you need to consult a doctor in time.