In what color of stool she had, I have had black color of stool with extreme fatigue when I am diagnosed of small intestine tumor. I didnt suspect that I have it until I was admitted to the hospital because of anaemia where I get very low haemoglobin probably due to blood loss. I have a normal colonoscopy and endoscopy test and it found out through citi scan.
I would highly suggest an MRI enterography over capsule! For one of also gets a good look at all internal organs but if for example there is strictures and scaring from ongoing disease (like crohn's) the capsule can actually become stuck and be cause for an emergency surgery. I know I suffered horribly by that she and it took into my early 20's for them to figure it out! Biggest words of advice: you are your own biggest advocate (or your chikds)! Trust your gut and your parental intuition! No one knows YOUR child better than you do!
Confused about that milk enzyme thing. Mammals including humans don't have enzymes to break down milk once they reach weaning age. While humans, unlike all other mammals, force lots of food into us that we aren't by nature equipped to consume, the lack of those enzymes just means you have an adult daughter. Don't know about the cause of the blood, the above gives a pretty exhaustive list of causes for blood in stool but you have doctors who are much better equipped to answer this than anyone posting on a website. Sometimes you just have to find the right doc who will keep looking until the cause is found, but blood in stool usually goes along with other symptoms that lead to a diagnosis.
Please note that upper endoscopy covers only esophagus, stomach, and beginning of small bowel and lower endoscopy (colonoscopy) covers only large bowel and end of small bowel. To evaluate remainder of small bowel, consider capsule endoscopy, or alternatively CT or MRI enterography.
Here is a comprehensive list of causes of chronic intermittent blood in stool at all ages, divided by location, then listed in order of prevalence:
UPPER GASTROINTESTINAL TRACT:
- Gastritis
- Esophagitis
- Gastric ulcer
- Duodenal ulcer
- Angiodysplasia
- Gastric cancer
- Esophageal cancer
LOWER GASTROINTESTINAL TRACT
Small bowel:
- Angiodysplasia
- Small bowel tumors
- Small bowel ulcers and erosions
- Crohn’s disease
- Small bowel diverticulosis
- Celiac sprue
- Radiation enteritis
- Meckel’s diverticulum
- Small bowel varices
- Lymphangioma
- Blue rubber bleb nevus syndrome
- Osler-Weber-Rendu syndrome
- Von Willebrand’s disease
- Small bowel polyposis syndrome
- Gardener’s syndrome
- Aortoenteric fistula
- Amyloidosis
- Hemosuccus pancreaticus hemobilia
Large bowel:
- Hemorrhoids
- Colorectal polyps
- Diverticulosis
- Colorectal cancer
- Proctitis/ulcerative colitis
- Arteriovenous malformations
- Colonic stricture
- Post-polypectomy bleeding
- Other colitis
- Anal neoplasms
In adolescents and young adults, inflammatory bowel disease, polyps, Meckel diverticulum, and bleeding diatheses are higher on the differential.