Bright red blood in the stool can be an indication of several conditions, including an anal fissure, polyps, diverticula, Crohn's disease, hemorrhoids, ulcerative colitis, angiodysplasia and cancer, among other conditions. Presence of blood in the stool means that a person is bleeding in the digesti
Red blood in a cat's stool is a symptom of a variety of illnesses, many of which can be life-threatening. Most cases of bloody stool are the result of bacterial infections in the colon and large intestines, with more serious cases being caused by stomach cancer.
Hemorrhoids, anal fissures, diverticulosis and colon polyps are the most common causes of blood in the stool, as confirmed by MedicineNet. Blood in the stool ranges in color from bright red to black.
Blood can show up in a person's stool as bright-red blood or as dark-red to black, tarry stool, states Cancer Research UK. Hemorrhoids may cause bright-red blood to appear in a person's stool, while bleeding in the digestive tract may appear as black, tarry stool.
Green feces in dogs are caused by intestinal disorders and parasite infections, according to VetInfo. The ingestion of grass can also cause a dog's feces to be green.
Bright green stool is not a cause for worry, according to Mayo Clinic. Normal stool colors include shades of brown and green. The bright green color could be an indicator that the stool is moving through the digestive track rapidly or of food the person consumed, such as leafy greens.
Some of the main causes of blood in the stool are diverticular disease, anal fissures, colitis and angiodysplasia, according to WebMD. Other causes of blood in the stool are peptic ulcers, polyps, cancer or health issues related to the esophagus.
Fresh rectal bleeding is usually caused by hemorrhoids or an anal fissure, according to Boots WebMD. The brightness of the blood indicates that the bleeding is fairly recent and near the anus, or somewhere low in the digestive tract, states WebMD.
Symptoms that indicate blood in the stool are finding blood in the stool itself or on toilet paper or passing stool that is tarry and black, explains WebMD. Other signs and symptoms are pain in the abdomen, diarrhea, vomiting, heart palpitations and fainting.
Bright yellow, watery stool indicates that food is passing too quickly through the digestive tract, according to About.com. Yellow stool is common in people with gastroesophageal reflux disease, or GERD. It can also indicate problems in the gallbladder and liver.