Weak positive fecal occult blood represents a small amount of blood cells in the stool, indicating that the amount of gastrointestinal bleeding is not large, and may be associated with gastrointestinal bleeding, with gastric ulcer, rectal polyps, gastrointestinal tumors and so on.
1. Gastric ulcer: It is mainly caused by Helicobacter pylori infection, and may also be induced by smoking and drinking, and excessive stress. This disease may lead to weak positive fecal occult blood.
2. Rectal polyps: mainly caused by heredity, bad habits, diet and other factors. This disease may lead to weak positive fecal occult blood.
3. Gastrointestinal tumors: mainly caused by infection, environmental factors, unclean diet and heredity. This disease may lead to weak positive fecal occult blood.
In addition to the above diseases, there are many other diseases that can cause small amount of bleeding in the digestive tract, such as infectious diarrhea, polyps, inflammatory bowel disease, drug-induced mucous membrane injury and so on. Therefore, when there is a weak positive fecal occult blood, it is recommended to follow the doctor’s instructions to improve the relevant examination to find out the cause.