There is no authoritative information on the signs and symptoms of hypoxia. Generally, patients with hypoxia will experience symptoms such as dizziness, palpitations, etc., and some patients will also experience symptoms such as dyspnea, fatigue, and bluish color. It is recommended that patients with hypoxia rest adequately and inhale oxygen through nasal cannula in a timely manner. There is no specific clinical information on the signs of hypoxia. Some patients will experience symptoms such as dizziness, palpitations, chest tightness, shortness of breath, nausea, vomiting, and so on, while others will experience symptoms such as dyspnea, fatigue, breathlessness, and weakness. If the patient is persistently hypoxic, there will also be symptoms such as bluish face, cyanosis of lips and mouth, bluish skin, conjunctival congestion and edema. Patients are advised to stop exercising immediately when the above symptoms occur to avoid aggravating them. If there is no relief or it becomes more serious, one should seek medical attention and take measures such as oxygen intake to improve the symptoms of hypoxia. Patients with hypoxia may experience symptoms such as dizziness and palpitations, and if the symptoms are severe, it is recommended that the patient seek medical attention in a timely manner and follow the doctor’s instructions for treatment.