Digestive Health Irritable Bowel Syndrome What It Means When Poop Is Fluffy, Hard, Colored, and More Understanding the Strange Appearance of Stool By Barbara Bolen, PhD Updated on November 13, 2023 Medically reviewed by Robert Burakoff, MD Print Unusual-looking poop, such as poop that is fluffy or has ragged and torn edges, can be a sign that something is not right in your digestive system. Although there is wide variability as to what a normal stool can look like, there are also some significant changes to stool appearance that may warrant follow-up. Healthcare providers use a chart called the Bristol Stool Chart to help describe differences in the color, shape, and consistency of stool. These differences can help diagnose gastrointestinal conditions like constipation or irritable bowel syndrome. This article goes over some of the stool characteristics that could indicate a problem in your gastrointestinal system. Caiaimage / Chris Ryan Getty Images If the appearance of your stool has changed, it is essential that you bring it to the attention of your healthcare provider. 1 Hard Stools Alan Grinberg/Moment/Getty Images Hard stools are those pebbly nuggets that are hard to pass. Sometimes the pebbles lump together into one larger mass that passes through in a single bowel movement. In such cases, there may be a sharp edge to the front of this lump. At other times, only a single pebble or a few small nuggets make their way out during a bowel movement. Hard stools indicate that the fecal matter lacks sufficient moisture, typically because it has been in the large intestine for too long. Some of the more common causes of hard stool include: Constipation Not drinking enough liquids Not eating enough fiber Waiting too long to have a bowel movement Health problems with constipation as a symptom Medications with constipation as a side effect Hard Poop: Causes and Treatment for Constipation 2 Loose Stools Yuji Kotani/Digital Vision/Getty Images Loose stools are those with a loose, watery appearance. Most often loose stools are associated with the frequent bowel movements of diarrhea. At times, loose stool may be accompanied by strong urges for passage or a sense of urgency to get to a bathroom quickly. Typically, stools become looser and more watery with repeated trips to the bathroom. Loose stools can be caused by: DietStressIntestinal infectionHealth problems with diarrhea as a symptomMedications with diarrhea as a side effect What Are the Causes and Fixes of Loose Stool? 3 Floating Stools Karsten Bidstrup/Lonely Planet Images Floating stools can be caused by something relatively harmless or be an indicator of a more serious health problem. Your floating stools are not something to be too concerned about if they are: InfrequentAccompanied by intestinal gasAssociated with a recent diet change If you start to experience floating stools on a regular basis, it is essential to tell your healthcare provider. Floating stools may be the result of too much fat in your stool, a condition known as steatorrhea. Other symptoms of steatorrhea include: Foul smellOily appearanceSoiling episodes Steatorrhea may indicate a problem with fat malabsorption. This means that fats are not being broken down and digested completely in the small intestine. This may be the result of a lack of adequate amounts of pancreatic enzymes and/or bile acids. The cause of these insufficiencies include: Certain diseases such as pancreatitis and cystic fibrosis Gallbladder removal Gallstones Medication side effects Causes of Floating Stool 4 Fluffy Stools Amazon Stool that looks fluffy or mushy and has ragged edges may be an early sign of diarrhea or it may indicate that you have excess fat in your stool. If you have poop that looks this way and it doesn't resolve after a few days, it could mean your body isn't absorbing nutrients the way it should be. Fluffy or mushy poop could be a symptom of a number of conditions, including: Celiac diseaseIrritable bowel syndromePancreatitisGiardiasis See a healthcare provider if this symptom happens more than just occasionally or if it is accompanied by other symptoms such as abdominal cramping, bloating, gas, blood in the stool, or unexplained weight loss. 5 Strangely Colored Stools Ganymede Photography/Moment Open/Getty Images Normal stools can come in a range of colors, including: Different hues of brown Orange Tan Yellow The following stool color changes should be brought to the attention of your healthcare provider: Black or tar-colored Green Pale, clay-colored Red (bright or dark) 6 Mucus Covered Stools John Lawson, Belhaven/Moment Open/Getty Images Mucus is that clear or slightly yellow gunky substance that sometimes is eliminated alongside the fecal matter of a bowel movement. Small amounts of mucus on the stool are considered normal. Larger amounts indicate the presence of an infection or a more chronic health problem. Mucus in Your Stool 7 Bloody Stools Talaj/E+/Getty Images If you see any sign of blood in your stool, you must immediately bring it to the attention of your healthcare provider. The blood may appear bright or dark red and may or may not include clots. Black or tar-colored stools can also be a sign of the presence of blood, but not always. Blood in stools does not always mean that there is something dangerously wrong with you. It could just be the result of a bleeding hemorrhoid or anal fissure. However, some serious health conditions, such as cancer, can cause blood in the stools. See your healthcare provider for immediate medical investigation of any sign that blood is present in the stool. 8 Pencil Thin Stools kemalbas/E+/Getty Images If you only experience thin stool every now and then, it is probably not cause for significant concern as this is not necessarily a sign of a serious health problem. However, you should still bring the symptom to your healthcare provider's attention. If you are experiencing persistent pencil-thin stools you need to tell your healthcare provider immediately. The causes of pencil-thin stools include: Colon cancer Diarrhea associated with irritable bowel syndrome or inflammatory bowel disease Enlarged prostate Polyps in the colon Scar tissue in the colon Summary Stools can vary in consistency from hard to watery. Floating stools, stools that are fluffy or ragged, and stools that are an unusual color, contain mucus, or are pencil-thin can be a sign that there is something wrong in your digestive system. Changes in the consistency and color of your stool don't always indicate a health problem. Sometimes these changes can happen because of something you ate. See a healthcare provider, however, if the changes persist for longer than a few days or if they are accompanied by other symptoms like abdominal pain or unexplained weight loss. 5 Sources Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy. NIH National Institute of Diabetes and Digestive and Kidney Diseases. Constipation. NIH National Institute of Diabetes and Digestive and Kidney Diseases. Diarrhea. NIH MedlinePlus. Stools - floating. Stanford Health Care. Symptoms of short bowel syndrome. Brenner DM, Domínguez-Muñoz JE. Differential diagnosis of chronic diarrhea: An algorithm to distinguish irritable bowel syndrome with diarrhea from other organic gastrointestinal diseases, with special focus on exocrine pancreatic insufficiency. J Clin Gastroenterol. 2023;57(7):663-670. doi:10.1097/MCG.0000000000001855 Additional Reading National Cancer Institute. Gastrointestinal complications: Bowel obstruction. By Barbara Bolen, PhD Barbara Bolen, PhD, is a licensed clinical psychologist and health coach. She has written multiple books focused on living with irritable bowel syndrome. See Our Editorial Process Meet Our Medical Expert Board Share Feedback Was this page helpful? Thanks for your feedback! What is your feedback? Other Helpful Report an Error Submit