Dizziness and weakness are mainly associated with poor mental status, cervical spondylosis, anemia, hypokalemia and cerebrovascular disease. Patients need to go to the hospital to do imaging, laboratory tests, ultrasound, etc. to clarify the cause. 1, poor mental state: prolonged brain, lack of sleep, work pressure, stress and anxiety can lead to poor mental state, and in severe cases, even neurasthenia, which can lead to symptoms such as dizziness, weakness and fatigue. Patients should relax and get enough rest to relieve symptoms; 2. Cervical spondylosis: due to long-term low head work, poor sleep posture and other reasons, the patient’s vertebral artery is compressed, which leads to dizziness, leg weakness, blurred vision and other symptoms. Patients can carry out daily exercises for shoulder and neck under the guidance of a specialist to relieve the symptoms; 3, anemia: common such as iron deficiency anemia, due to the lack of iron in the red blood cells of patients, the concentration of hemoglobin decreases, resulting in a decrease in the amount of oxygen carried by the blood, and then patients appear dizziness, leg weakness and other adverse symptoms. At this time, patients should be given iron treatment under the guidance of professional doctors. Before and after taking the medicine, they should avoid eating cereals, dairy and tea to avoid inhibiting iron absorption; 4. Hypokalemia: low blood potassium due to long-term diarrhea and anorexia can lead to symptoms of weak legs, and some patients can be accompanied by dizziness, so they need to take potassium supplements along with food to restore the blood potassium level as soon as possible; 5. Cerebrovascular disease Cerebrovascular diseases such as arteriosclerosis and hypertension can cause ischemia and hypoxia in the brain, which can lead to dizziness and weakness in the legs. Patients should take simvastatin, verapamil and other drugs as prescribed by the doctor. In addition to the above factors, hypoglycemia and hypotension can also cause patients to experience dizziness and leg weakness. Timely replenishment of energy and proper rest can effectively relieve discomfort. There are many reasons for dizziness and leg weakness, so patients are advised to go to the hospital in a timely manner to clarify the cause and then treat the cause.