Mild obstructive ventilation dysfunction is mainly characterized by symptoms such as wheezing and hypoxia brought about by mild dyspnea, as well as symptoms of primary disease such as coughing and sputum. The respiratory process includes ventilation and air exchange. Obstructive ventilation dysfunction refers to insufficient lung ventilation due to narrowing or obstruction of the airways, which is often caused by bronchial asthma, obstructive pulmonary disease, and bronchial foreign bodies. Mild obstructive ventilation dysfunction is mainly characterized by mild expiratory or inspiratory dyspnea, which can be characterized by symptoms such as chest tightness, shortness of breath, wheezing, and effort to inhale or exhale. It also manifests as hypoxic symptoms brought about by dyspnea, such as dizziness, palpitations (rapid heartbeat, often accompanied by panic), and whitening and purpling of the mucous membranes of the mouth and lips. Obstructive ventilatory dysfunction caused by different diseases will also have different symptoms, such as obstructive pulmonary disease will have symptoms such as coughing, coughing up sputum, wheezing, and labored expiration; and bronchial asthma will have episodes of coughing and wheezing as well as rales. Patients with breathing problems are advised to seek prompt medical attention and follow the doctor’s instructions for examination and treatment.