Difference between vomiting blood and blood in stool

When thinking of vomiting blood, most people will think that this problem is very serious. Vomiting blood is generally a problem with the upper digestive tract. At this time, we should seek medical attention as soon as possible. As for blood in the stool, it is medically classified as an intestinal disease. The causes of this disease are also common and are also related to life and intestinal digestion. Whether it is vomiting blood or blood in the stool, the cause should be found out as soon as possible and treated in time. Today I will show you the difference between vomiting blood and blood in the stool.

Hematemesis refers to vomitus containing fresh blood or bloody substances. It is usually easily caused by bleeding in the upper gastrointestinal tract, such as the esophagus and stomach. There is a feeling of nausea first, followed by reflex vomiting. If the vomitus is fresh blood, it indicates esophageal bleeding. If the vomitus is coffee. Brown color indicates gastric or duodenal bleeding. Hemoptysis, also known as coughing up blood, refers to bleeding in the respiratory tract below the throat that is coughed up through the mouth, mostly due to bleeding in the lungs or bronchus. There is often an itchy feeling in the throat before hemoptysis, and the blood is often mixed with sputum. Patients cannot distinguish between vomiting blood and hemoptysis, and often call them both hematemesis. If it is vomiting blood, the doctor will consider it as upper gastrointestinal bleeding, while hemoptysis is more likely to be pulmonary or bronchial bleeding. If the patient's chief complaint is unclear, it is likely to lead to misdiagnosis by the doctor. Therefore, distinguishing between hematemesis and hemoptysis is of great significance for clinical diagnosis.

Hematemesis and hemoptysis can be distinguished from each other based on the following points: (1) Medical history: Patients with hematemesis often have a history of gastric or duodenal ulcers, tumors, or liver cirrhosis; while patients with hemoptysis generally have tuberculosis, bronchiectasis, or cardiopulmonary disease. (2) Symptoms before bleeding: Upper abdominal pain and fullness often occur before vomiting blood; throat itching, coughing, and chest tightness often occur before hemoptysis. (3) Bleeding pattern: Hematemesis is usually caused by vomiting, while hemoptysis is usually vomited out after coughing. (4) Blood color: The color of hematemesis is purple or brown without foam, while the color of hemoptysis is bright red with foam. (5) Blood reaction: The blood of hematemesis is acidic; the blood of hemoptysis is weakly alkaline.

1. Fresh blood in stool: Generally comes from the lower end of the ileum, colon, rectum, and anus. The stool is bright red or dark red and may be mixed with mucus, pus and blood. Common diseases are: hemorrhoids and anal fissure bleeding. The blood in the stool caused by hemorrhoids may flow out in a jet-like manner during defecation or drip after defecation; the amount of blood in the stool caused by anal fissure is small, but the anal pain is more severe. Rectal polyps bleed, the amount of blood in the stool is not large, the blood is attached to the surface of the stool, and sometimes the stool becomes thinner and strip-shaped or has pressure marks. Dysentery causes bloody stools with pus and blood, frequent bowel movements, and pain in the left lower abdomen.

2. Tarry stool: that is, black stool. If upper gastrointestinal bleeding is not vomited out, the blood will stay in the intestines for a long time. The hemoglobin in the blood will combine with the sulfide in the intestines to form ferrous sulfide. Ferrous sulfide makes the stool black and shiny, like tar. The presence of tarry stools indicates that the amount of bleeding has reached more than 60 ml. However, it should be noted that certain foods and medicines can cause stools to turn black, which can be identified using a fecal occult blood test.

3. Occult blood in stool: Any small amount of gastrointestinal bleeding that does not cause a change in stool color and only tests positive for occult blood in the stool is called occult blood in stool. All diseases that cause gastrointestinal bleeding can cause occult blood in the stool, the most common of which are gastric ulcers and gastric cancer.

The impact of blood in the stool on patients is relatively large, so we must pay attention to it. In particular, patients should pay attention to the treatment of this disease and the prevention of this disease. If the above symptoms occur, we must treat it in time.