Weakness and lack of energy is a non-specific symptom, clinical diseases can lead to weakness and lack of energy, such as respiratory diseases, digestive diseases, cardiovascular diseases, infections and so on.
1. Respiratory system diseases: respiratory system diseases can lead to chest tightness, shortness of breath, coughing and other symptoms, the patient’s body cell oxygen supply is insufficient, the symptoms of weakness and lack of energy.
2. Digestive system diseases: such as gastritis, enteritis, peptic ulcer, gallstones, impaired liver function, etc., may be accompanied by typical symptoms of digestive diseases, such as nausea, vomiting, abdominal pain, diarrhea and so on.
3. Cardiovascular disease: cardiovascular disease patients with impaired heart function will have symptoms of weakness and lack of energy.
4. Infection: patients are infected by external pathogens, such as influenza virus caused by upper respiratory tract infection, the body has fever and other symptoms, often feel weak and lack of energy.
Lack of energy may also be caused by other reasons, the patient should consult a doctor in time.