Yellow Stool : Causes, Symptoms, Diagnosis & Treatment

Last Updated: 11/08/2022

Yellow stool is the passing of yellowish stools, the consistency of which is often changed. Normally, the symptom occurs in infants, in adults - after eating certain foods. Common pathological causes of yellowing of the stool are diseases of the hepatobiliary zone, dysbacteriosis, intestinal infections, hormonal fluctuations in women. To clarify the etiology, they make a coprogram, ultrasound and x-ray of the intestine, ERCP. To eliminate the symptom, a diet, intake of sorbents, probiotics and enzyme preparations is necessary.

Causes of yellow stool

Nutrition Features

Eating large amounts of carrots and sweet potatoes causes a change in the color of the stool, since these products contain natural coloring substances. Bright yellow stools appear after eating dishes with turmeric. The symptom is observed in compliance with the milk diet, the predominance of fermented milk products in the diet. Natural causes provoke only a change in the color of the stool, the consistency and frequency of bowel movements remain normal.

Childhood

In newborns, the feces are yellow, which is due to the consumption of one breast milk. Normal stools have a mushy texture. After a few months, the color changes to mustard or yellowish green, which is also a normal variant. In children of the first year of life, who are bottle-fed, the feces are light brown or light yellow with a pungent odor.

Intestinal infections

The light color of feces is detected during infectious processes that affect the small intestine and prevent the normal digestion of food. Escherichiosis is characterized by liquid feces of a golden yellow color. The frequency of bowel movements increases up to 10-15 times a day. Greenish-yellow stools are excreted in the gastrointestinal form of salmonellosis.

Frequent light yellow stools occur with rotavirus infection. Feces are very liquid, with a specific pungent odor. The disease is usually determined in children of preschool and primary school age who have not yet learned to observe hygiene. Yellow feces are also provoked by other causes: enterovirus infection, food poisoning.

 

pancreatic enzyme deficiency

With a lack of digestive enzymes in the small intestine, part of the food is not digested, but is excreted from the body with feces, which acquire a light or pale yellow color. In chronic pancreatitis, the symptom is noted periodically: if a special diet is observed, the feces have a normal color, when the gastrointestinal tract is overloaded with fatty foods, it brightens and acquires a mushy consistency.

Yellow coloration of feces is preceded by heaviness and pain in the epigastrium, patients complain of rumbling and flatulence. In acute pancreatitis, the color of the feces changes to light yellow or grayish suddenly. At the same time, a person is disturbed by severe girdle pains in the upper abdomen, repeated vomiting, which does not bring relief.

Diseases of the hepatobiliary system

The typical brown color of feces is due to bile acids and stercobilin, which enter the intestine with bile. Periodic light yellow stools of a mushy consistency are characteristic of chronic cholecystitis or cholelithiasis in the acute stage, when bile secretion is impaired. Similar symptoms are observed in functional disorders of the gallbladder.

Lightening of feces is caused by causes from the liver: viral or toxic hepatitis of mild to moderate severity, in which the biliary function is partially preserved. The appearance of yellow stools is accompanied by heaviness in the right hypochondrium, constant nausea and loss of appetite. Symptoms are aggravated after eating fatty foods. With the complete cessation of bile secretion, the yellow color of the feces is replaced by a grayish-white.

Giardiasis

Giardia multiply in the gallbladder, disrupt the outflow of bile and contribute to the clarification of feces. The frequency of bowel movements in giardiasis increases up to 5-7 times a day, the feces are bright yellow and liquid, with a sharp fetid odor. In addition, the person complains of dull pain in the right hypochondrium, flatulence, nausea and vomiting mixed with bile. Normalization of the color of feces occurs on the 5-7th day of the disease.

celiac disease

Symptoms occur with a large consumption of cereals - barley, wheat, rye. Light yellow mushy stools with a sharp unpleasant odor may appear periodically, and then constantly in childhood and adolescence, which is combined with weight loss, growth retardation and physical development. The first detected yellow stool in an adult indicates a mild form of celiac disease, which is well stopped with the help of a diet.

Complications of pharmacotherapy

Many drugs provoke violations of the digestion and absorption of food, which is manifested by yellowing of the feces and an increase in the frequency of defecation. A person notes seething and rumbling in the intestines, soreness throughout the abdomen, lack of appetite. When taking antibiotics, the color of the stool is greenish-yellow, which is associated with intestinal dysbiosis. The yellow color of the feces of the masses is caused by the following medical causes:

  • Anti-tuberculosis drugs : isoniazid, ethambutol, streptomycin.
  • Derivatives of estrogen .
  • Cytostatics : methotrexate, cyclophosphamide, adriamycin.
  • Some non-steroidal anti-inflammatory drugs : aspirin, paracetamol, diclofenac.

Rare Causes

  • Viral infections : cytomegalovirus, infectious mononucleosis.
  • Hormonal changes in women : premenstrual period, pregnancy, menopause.
  • Bilirubin conjugation disorders : Gilbert's syndrome, Crigler-Najjar syndrome.
  • Psychological causes : severe stress, depression.

Diagnostics

If the color of the stool changes to yellow, you should consult a gastroenterologist. To determine the cause of yellowing of the stool, an instrumental examination of the digestive system is performed. To clarify the diagnosis and identify hidden metabolic disorders, highly specific laboratory methods are prescribed. In diagnostic terms, the most informative:

  • Coprogram . Macroscopically study the consistency, color and smell of feces. Microscopic analysis pays attention to the presence of undigested muscle fibers and starch grains, the number of erythrocytes and leukocytes. Be sure to examine the feces for helminth eggs, to assess the work of the pancreas, fecal elastase is determined.
  • Sonography . Plain ultrasound of the abdominal cavity reveals inflammatory or fibrotic changes in the liver and pancreas, signs of intestinal damage. To clarify the cause of the disease, elastometry is informative, which allows you to quickly and painlessly establish the degree of liver fibrosis.
  • X-ray imaging . To study the motor function of the intestine and detect local inflammatory processes, an abdominal x-ray with a barium mixture is recommended. A plain radiograph of the abdomen helps to visualize masses, cysts of the liver or pancreas. If necessary, perform irrigoscopy.
  • Retrograde cholecystopancreatography . Endoscopic examination of the bile and pancreatic ducts is an invasive examination that is used to diagnose cholangitis, cholelithiasis, and reactive pancreatitis. The method is therapeutic and diagnostic, since during ERCP it is possible to remove small stones that clog the bile ducts.
  • Blood tests . A blood test for the level of pancreatic lipase and amylase is aimed at studying the enzymatic activity of the pancreas. Liver tests are also being studied. Serological tests (ELISA, RIF) detect specific antibodies in case of suspected viral or bacterial intestinal infections.

 

Treatment

Help before diagnosis

The yellow color of feces, due to eating habits and observed against the background of normal health, disappears on its own after 2-3 days. In order not to overload the intestines during this period, it is advised to give up fatty and fried foods, alcohol. If a change in the color of the stool occurs against the background of diarrhea, abdominal pain, you should visit a specialist. To improve the condition, you can drink sorbents. The use of antidiarrheal agents is undesirable.

Conservative therapy

The yellowish color of feces is caused by various reasons, so the list of therapeutic measures is selected individually. An important stage of treatment is the observance of a special diet, which is based on stewed vegetables, meat and fish of low-fat varieties, cereals and soups. In chronic pathologies of the pancreas and liver, such a diet must be followed constantly. To treat diseases in which feces have a yellow color, the following drugs are prescribed:

  • Sorbents . Activated charcoal preparations, smecta are designed to bind and remove toxins from the intestines. Medicines speed up recovery from toxic infections, help to cope with diarrhea, and improve digestive functions.
  • Probiotics . With dysbacteriosis, bacterial overgrowth syndrome and side effects of pharmacotherapy, beneficial bacteria are taken that populate the large intestine and promote digestion. For a lasting effect, they are used in courses of at least 1 day.
  • Enzymatic agents . When inhibiting the exocrine function of the pancreas, drugs containing pancreatic enzymes are used. They eliminate the causes of yellow stools, stimulate the processes of abdominal digestion in the small intestine.
  • Choleretic drugs . Indicated in hepatobiliary pathology. They improve the chemical composition of bile and ensure its entry into the duodenum 12, which is required for the breakdown of fats. The color of the feces returns to normal after a couple of days after the start of treatment.
  • Means for rehydration therapy . All intestinal infections are accompanied by large fluid losses, for which there are oral solutions. They contain the optimal amount of salts and glucose, restore acid-base balance and electrolyte composition.