Cerebral hemorrhage usually does not directly cause sudden weight loss, but its complications or other such as dysphagia, cognitive impairment, gastrointestinal dysfunction may cause sudden weight loss. 1. If cerebral hemorrhage causes damage to the glossopharyngeal, hypoglossal, and vagus nerves, it may lead to dysphagia. Or severe cognitive impairment and inability to eat on their own, leading to severe malnutrition, may cause the patient to lose weight violently. 2. Hematoma or edema caused by cerebral hemorrhage compresses the surrounding tissues, causing abnormalities in the thalamus, which affects the abnormalities of the vagus nerve center, leading to disorders of gastrointestinal function, or even gastrointestinal hemorrhage and ulcers, resulting in severe malnutrition, which may cause the patient to lose weight violently. If the patient after cerebral hemorrhage appears to lose weight violently, he should consult a doctor in time and be actively treated under the doctor’s guidance.