Sweating and weakness may be caused by kidney yin deficiency, qi deficiency, or qi and blood deficiency, but the exact cause needs to be decided by the doctor based on the patient’s other symptoms. 1. Kidney-Yin deficiency: Patients with Kidney-Yin deficiency may have fever in the hands and feet, hot flashes (a burst of heat), night sweats (abnormal sweating after going to sleep, but sweating stops after waking up), lumbar and knee soreness (a feeling of soreness and weakness in the lumbar and knee areas), fatigue, insomnia, and sleeplessness. 2. Qi deficiency: Patients with Qi deficiency will have shortness of breath, spontaneous sweating (involuntary sweating during the day, aggravated by sweating with slight movement), fatigue, mental fatigue, dizziness and other manifestations. 3. Qi and blood insufficiency: patients with Qi and blood insufficiency may manifest spontaneous sweating (involuntary sweating during the day, aggravated by sweating with slight movement), dizziness and tinnitus, coldness and coldness of limbs (fear of cold, cold limbs), mental depression, fatigue, shortness of breath, and so on. If the symptoms of sweating and weakness are not relieved for a long time or accompanied by other discomforts, consult a doctor in time to find out the cause and carry out targeted treatment.