Weakness of the body and limbs can be seen in the following diseases: 1, the patient may be anemic, especially the elderly, due to poor gastrointestinal function, anemia caused by malabsorption, the patient can appear weakness of the body and limbs, you can check the level of hemoglobin in the blood, usually more folic acid and iron supplements; 2, the patient low calcium, low potassium, etc. can also appear weakness of the body and limbs 3, when the cerebral blood supply deficiency is serious, the patient can also appear weak, limb weakness, generally seen in the posterior circulation of the cerebral blood supply deficiency; 4, Chinese medicine speaks of deficiency of qi and blood, physical body loss, the patient can also appear weak, limb weakness, you can give the patient to supplement the qi and blood to relieve symptoms; 5, if the patient sweats a lot in summer, not In summer, if the patient sweats a lot and does not replenish the blood volume in time, the patient also appears to be weak and limbless when suffering from heat stroke.