hematochezia
Definition
Noun: - The medical term for the passage of fresh, bright red blood in the stool. This blood typically originates from bleeding in the lower gastrointestinal tract, such as the colon or rectum.
Usage
Hematochezia is used specifically in medical contexts to describe a symptom, not a disease itself. It indicates active bleeding and is a significant clinical sign that requires medical evaluation.
Examples
- The patient presented to the emergency department with hematochezia and abdominal pain.
- Hematochezia is a common symptom of conditions like hemorrhoids or inflammatory bowel disease.
- The doctor noted the hematochezia in the patient's chart as a key finding.
Advanced Usage
- Differentiating from Melena: In medical diagnosis, it is crucial to distinguish hematochezia (bright red blood) from melena (black, tarry stools indicating upper GI bleeding).
- As a Clinical Indicator: The presence, quantity, and frequency of hematochezia are important factors in assessing the severity and likely source of gastrointestinal bleeding.
Variants and Related Words
- Hematochezia is the standard noun form. There is no common verb or adjective form derived directly from this word.
- Related Medical Term: Melena (noun): The passage of black, tarry stools caused by digested blood from the upper gastrointestinal tract.
Synonyms
- Rectal bleeding: A more general, layperson's term for the passage of blood from the rectum.
- Blood in stool: A simple, descriptive phrase for the symptom.
Antonyms
- Normal stool: Stool without visible blood.
- Melena: While not a direct opposite, it represents a different type of bloody stool (dark and digested vs. bright red and fresh).
Notes on Meaning
Hematochezia refers specifically to the visible symptom. The underlying causes are numerous and range from benign (e.g., anal fissures, hemorrhoids) to serious (e.g., colorectal cancer, ulcerative colitis, diverticular bleeding). It is always a sign that warrants professional medical consultation.
Noun
-
passage of stools containing blood (as from diverticulosis or colon cancer or peptic ulcer)
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