Patient's question:
Detailed medical condition and consultation purpose: Blood in stool, checked and found not to be intestinal bleeding, but the cause cannot be identified. What tests should be done?Duration of the current illness: 4 days
Current general condition: Frequently crying, blood in stool
Medical history: Blood in stool began on the 25th day. The doctor initially said it was intestinal bleeding, but the bleeding did not stop after taking hemostatic medication. Later, the doctor mentioned a lack of a certain substance, but this was not confirmed during the recent check-up. CT, blood tests, ECG, and EEG were performed, but the doctor could not find a cause. Now we are unsure what to do?
Doctor's answer:
Hello: Below are all the symptoms of blood in the stool. You can undergo relevant examinations to rule out each possibility. It is crucial to seek treatment promptly and not delay the condition. Blood in the stool is a special symptom of bleeding from the lower digestive tract, particularly the colon, rectum, and anus, indicating an organic lesion in the intestines. It must be taken very seriously, and a timely diagnosis and prompt treatment are necessary. When blood is present in the stool, the following diseases should be considered:(1) Anorectal diseases
① Bright red blood without pain is often seen in internal hemorrhoids. Stage I hemorrhoids are characterized by bleeding, usually due to the hemorrhoids being scraped by stool. The blood may be a continuous trickle, a thin stream like an arrow, or only on toilet paper. Stage II hemorrhoids may have little or no bleeding and are often prolapsed outside the anus.
② Hemorrhoidal fissure is often accompanied by anal pain and a typical post-defecation pain cycle.
③ Anal canal cancer is primarily characterized by bleeding and pain, with pain intensifying before defecation.
(2) Rectal diseases
① Rectal polyps are primarily characterized by intermittent bright red blood, usually in small amounts. This condition is common in children.
② Rectal cancer is primarily characterized by increased bowel movements, narrowed stools with mucus and blood, accompanied by tenesmus or a feeling of incomplete defecation. Early bleeding is bright red or dark red and in small amounts. In advanced stages, the stool often contains foul-smelling mucus, weight loss, and should be given high attention.
③ Radiation proctitis can also cause blood in the stool but should be preceded by a history of radiation therapy.
(3) Colonic diseases
① Colonic polyps: a. Juvenile polyposis of the colon, with an average onset age of 6 years, without a family history, primarily characterized by blood in the stool, often accompanied by nutritional