Vomiting black blood may be related to the presence of digestive bleeding, peptic ulcer and malignant tumors.
1. Gastrointestinal bleeding: If there is gastrointestinal bleeding, the blood will stay in the stomach for a long time, and the hemoglobin inside the blood will form acidified n-ferrohemoglobin under the action of gastric acid, which may lead to vomiting black blood.
2. Peptic ulcer: if the body has a peptic ulcer can also lead to this situation, if the ulcer has corroded to the local capillaries, will lead to capillary hemorrhage, in the gastric acid under the action of the blood turns black, with the patient vomiting vomit.
3. Malignant tumors: vomiting black blood may also indicate the presence of malignant tumors in the stomach, with the gradual increase of the tumor or tumor rupture, which in turn leads to the phenomenon of patients vomiting blood.
The symptoms of vomiting black blood alone can not accurately determine the cause, but also need to be combined with the characteristics of the medical history, other test results to make an accurate judgment, it is recommended to clarify the cause of the disease under the guidance of a doctor.