Elderly people vomiting black liquid does not necessarily suggest that they are going to pass away, it may be due to gastroduodenal ulcer, gastric cancer and other causes of gastrointestinal bleeding; it may also be caused by indigestion. 1. Gastroduodenal ulcer: Usually there is a history of chronic gastroduodenal ulcer, and the attack is accompanied by symptoms such as vomiting, black stools and black liquid in the mouth. After active treatment and without serious complications, life expectancy is usually not affected. 2. Gastric cancer: Usually there is no obvious discomfort in the early stage, only indigestion and slight distension and pain in the epigastrium, etc. In the late stage, anemia, anorexia, epigastric mass, etc. may appear. In the late stage, there may be symptoms like vomiting blood or black liquid, black stool and obvious weight loss. When malignant disease and other serious complications occur in the late stage of gastric cancer, it can be life-threatening. 3. Dyspepsia: If eating black and indigestible food such as mulberry, dyspepsia can also lead to the symptom of vomiting black liquid, which usually will not affect the life expectancy. The elderly spit black liquid may also be related to respiratory diseases, such as bronchitis, pneumonia, tuberculosis, etc., it is recommended to consult a doctor in a timely manner, under the guidance of a professional physician to clarify the cause of the disease, not to judge blindly on their own.