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Melena is a form of blood in stool which refers to the dark black, tarry feces that are commonly associated with upper gastrointestinal bleeding. [1] The black color and characteristic strong odor are caused by hemoglobin in the blood being altered by digestive enzymes and intestinal bacteria. [2]
A persistent (chronic) history of diarrhea, with watery or mushy, unformed stools, (types 6 and 7 on the Bristol stool scale), sometimes with steatorrhea, increased frequency and urgency of defecation are common manifestations, often with fecal incontinence and other gastrointestinal symptoms such as abdominal swelling, bloating and abdominal pain.
Symptoms include abdominal pain which may come and go, vomiting, abdominal bloating, and bloody stool. [1] It often results in a small bowel obstruction. [1] Other complications may include peritonitis or bowel perforation. [1] The cause in children is typically unknown; in adults a lead point is sometimes present. [1]
Symptoms may be non-specific and progress gradually, often delaying diagnosis. About one-third of patients have colonic disease, another third have ileocolic disease, and the remaining third have isolated ileal disease. Systemic symptoms such as chronic fatigue, weight loss, and low-grade fevers are common. Organs such as the skin and joints ...
Along with smelly stool, other symptoms include watery stool, diarrhea, abdominal cramps, and abnormal heartbeat, per the Wisconsin Department of Health Services. 8. You have cancer.
Impaired digestion or absorption can result in fatty stools. Possible causes include exocrine pancreatic insufficiency, with poor digestion from lack of lipases, loss of bile salts, which reduces micelle formation, and small intestinal disease-producing malabsorption. Various other causes include certain medicines that block fat absorption or ...
Loose stool in young children isn't an uncommon problem, as those of us who practice pediatric gastroenterology can attest. The practical consensus is that if your child passes three or more ...
Infections without symptoms may be treated with just one antibiotic, and infections with symptoms are treated with two antibiotics. [3] Amoebiasis is present all over the world, [6] though most cases occur in the developing world. [7] About 480 million people are currently infected with about 40 million new cases per year with significant symptoms.