What disease is tarry stool caused by

We all know that some of our excretions can also reflect our physical condition, such as urine and feces. In addition, doctors can tell the normal function of a certain organ in the body from the shape and color of the stool. Physical condition and normal situation, so we must pay attention to these details in life to avoid delaying the disease. Once we find anything wrong, we must correct it in time and actively cooperate with the doctor's treatment. Therefore, we must pay attention to it. Let us now understand what diseases tarry stools are commonly associated with!

1. Causes and common diseases

Tarry stools are usually caused by upper gastrointestinal bleeding. When the amount of blood in the intestine exceeds 60 ml, tarry stool will be discharged. Common diseases:

1. Ulcer disease

Among ulcer diseases, duodenal bulb ulcer is the most common. The bulb is located below the pylorus, so when ulcers here bleed, the stools are mostly black, and if the bleeding is heavy and fast, it may be accompanied by vomiting blood. Patients with bulbar ulcers often complain of stomach pain when fasting, which is relieved or alleviated after eating. A small number of patients present with chest pain as the first symptom, which can be easily misdiagnosed as pleurisy or angina pectoris.

2. Gastric tumor

In addition to vomiting blood, gastric tumors are often accompanied by black stools. If there is no vomiting of blood, black stools are the main symptom. Middle-aged and elderly people should look at the color of their stool after defecation every day. If the stool is black or dark brown, they should be alert to upper digestive tract tumors, such as gastric cancer.

3. Esophageal varices, liver cirrhosis

Esophageal varices may cause vomiting of blood with black stools. If there is only black stool, you should pay attention to whether there is duodenal bulb ulcer, because patients with cirrhosis often have ulcer disease, and most of them are painless.

4. Esophagitis, hemorrhagic gastritis, cardiac mucosal laceration

These three diseases can also cause black stools, and they can only be identified with the help of gastroscopy. Sometimes all three symptoms only cause black stools without vomiting blood.

5. Others

Some medicines contain bismuth, which can cause gray-black stools without luster after taking them. Many people mistakenly think they are black stools. Medications containing iron can also cause black stools. Black stools may also appear after eating animal blood or animal offal (liver, kidneys). Therefore, when black stools appear, you should find out whether you have eaten the above foods recently.

2. Differential Diagnosis

Upper gastrointestinal bleeding may cause tarry stools, but tarry stools do not necessarily indicate upper gastrointestinal bleeding. Tarry stools may also occur when taking drugs such as activated carbon, Livzon Dele, Dele Granules, Livzon Wei Sanlian, Weibizhi, Bismuth Potassium Citrate Oral Liquid, Bismuth Pectin, iron supplements, or when eating foods such as mulberries, amaranth, black rice, blood sausage, blood sausage, duck blood, sheep blood, and pig liver.

3. Inspection

Whenever tarry stools are seen, first check for the medical history, clinical symptoms and signs of digestive and blood system diseases; second, check for occult blood in the stool, hemoglobin, and coagulation; if necessary, perform abdominal ultrasound, gastroscopy or duodenoscopy to determine whether it is upper gastrointestinal bleeding, as well as the location, cause and severity of the bleeding.

Treatment principles

Find out the underlying disorder causing the tarry stools and treat it accordingly.