Cerebral infarction disease itself does not cause patients to lose weight, but the symptoms of cerebral infarction can affect the patient’s eating and physical activities, which can cause patients to lose weight. Brain infarction is mostly due to atherosclerosis leading to vascular occlusion, and patients have risk factors for atherosclerosis, which are mostly seen in middle-aged and elderly people in clinical practice. Patients can experience post-stroke anxiety and depression after cerebral infarction, and due to depressed mood, patients can experience reduced eating and wasting. Some patients with cerebral infarction will have symptoms of choking on water and difficulty in swallowing, which will affect eating, and patients will also suffer from wasting due to insufficient eating. Patients with cerebral infarction will have unfavorable limb activities, and due to prolonged inactivity, patients can develop disuse atrophy, which is manifested as limb wasting.