Crohn's Disease Related Diseases & Conditions

Medical conditions are often related to other diseases and conditions. Our doctors have compiled a list of ailments related to the topic of Crohn's Disease. These conditions may be a cause or symptom of Crohn's Disease or be a condition for which you may be at increased risk.

  • Vitamin D Deficiency Vitamin D deficiency has been linked with rickets, cancer, cardiovascular disease, severe asthma in children and cognitive...learn more »
  • Anal Itching Anal itching is the irritation of the skin at the exit of the rectum, known as the anus, accompanied by the desire to scratch. ...learn more »
    In This Article
    Anal Itching Article
    • What is anal itching?
    • What causes anal itching?
    • How is anal itching treated?
    • Local anesthetics
    • Vasoconstrictors
    • Protectants
    • Astringents
    • Antiseptics
    • Keratolytics
    • Analgesics
    • Corticosteroids
    • What if anal itching persists?
  • Colitis Inflammation of the inner lining of the colon is referred to as colitis. Symptoms of the inflammation of the colon lining include...learn more »
    In This Article
    Colitis Article
    • Colitis facts
    • What is colitis?
    • What are the causes (types) of colitis?
    • Infectious colitis
    • Ischemic colitis
    • Inflammatory bowel disease
    • Microscopic colitis
    • Allergic colitis in infants
    • What are the symptoms of colitis?
    • When should I contact my doctor about colitis?
    • How is colitis diagnosed?
    • How is colitis treated?
    • What is the prognosis for a patient with colitis?
  • Anemia Anemia is the condition of having less than the normal number of red blood cells or less than the normal quantity of hemoglobin...learn more »
  • Colon Cancer Colon cancer is a malignancy that arises from the inner lining of the colon. Most, if not all, of these cancers develop from...learn more »
    In This Article
    Colon Cancer Article
    • Colon cancer facts
    • What is cancer?
    • What is cancer of the colon and rectum?
    • What are the causes of colon cancer?
    • What are the symptoms of colon cancer?
    • What tests can be done to detect colon cancer?
    • How can colon cancer be prevented?
    • What are the treatments and survival for colon cancer?
    • What is the follow-up care for colon cancer?
    • What does the future hold for patients with colorectal cancer?
  • Canker Sores Canker sore is a small ulcer crater in the lining of the mouth. Canker sores are one of the most common problems that occur in...learn more »
    In This Article
    Canker Sores Article
    • Canker sores facts
    • What are canker sores?
    • What are symptoms and signs of canker sores?
    • What are the causes of canker sores?
    • Are canker sores the same thing as fever blisters?
    • What is the treatment for canker sores?
    • What kind of topical medications (gels or ointments) are available for canker sores?
    • Can mouthwash solutions be used to treat canker sores?
    • What oral medications are available to help canker sores?
    • What should I do if I get canker sores frequently?
  • Diarrhea Diarrhea is a change is the frequency and looseness of bowel movements. Cramping, abdominal pain, and the sensation of rectal...learn more »
    In This Article
    Diarrhea Article
    • Diarrhea facts
    • What is diarrhea?
    • How is diarrhea defined?
    • Why does diarrhea develop?
    • What symptoms are associated with diarrhea?
    • What are common causes of acute diarrhea?
    • Viral gastroenteritis
    • Food poisoning
    • Traveler's diarrhea
    • Bacterial enterocolitis
    • Parasites
    • Drugs
    • What are common causes of chronic diarrhea?
    • What are the complications of diarrhea?
    • When should the doctor be called for diarrhea?
    • What tests are useful in the evaluation of diarrhea?
    • How can dehydration be prevented and treated?
    • How is diarrhea treated?
    • When should antibiotics be used for diarrhea?
  • Gallstones Gallstones are stones that form when substances in the bile harden. Gallstones (formed in the gallbladder) can be as small as a...learn more »
  • Abdominal Pain (Causes, Remedies, Treatment) Abdominal pain can have many causes. Some of the less serious causes include bloating, gas, colitis, endometriosis, food...learn more »
    In This Article
    Abdominal Pain (Causes, Remedies, Treatment) Article
    • Abdominal pain facts
    • What is abdominal pain?
    • What causes abdominal pain?
    • When should I call my doctor about abdominal pain?
    • How is the cause of abdominal pain diagnosed?
    • Signs and symptoms associated with abdominal pain
    • Physical examination to diagnose abdominal pain
    • Exams and tests to diagnose abdominal pain
    • IBS (irritable bowel syndrome) and diagnosing abdominal pain
    • Why can diagnosis of the cause of abdominal pain be difficult?
    • What are home remedies for certain causes of abdominal pain?
    • What medications can be used to treat certain causes of abdominal pain?
    • What lifestyle choices can I make to prevent abdominal pain?
  • Pink Eye Pink eye, also called conjunctivitis, is redness or irritation of the conjunctivae, the membranes on the inner part of the...learn more »
  • Gastritis Gastritis is an inflammation of the stomach lining. Causes of gastritis include drinking too much alcohol, medications such as...learn more »
    In This Article
    Gastritis Article
    • What is gastritis?
    • What causes gastritis?
    • What are the symptoms of gastritis?
    • How is gastritis diagnosed?
    • What are the treatment medications and home remedies for gastritis?
    • What are the complications of gastritis?
    • What is the prognosis of gastritis?
    • How is gastritis prevented?
  • Clostridium Difficile Colitis (Antibiotic-Associated Colitis, C. difficile colitis) Clostridium difficile (C. difficile) is a bacterium, and is one of the most common causes of infection of the colon. C. difficile...learn more »
    In This Article
    Clostridium Difficile Colitis (Antibiotic-Associated Colitis, C. difficile colitis) Article
    • Clostridium difficile (C. difficile) facts
    • What is Clostridium difficile (C. difficile?)
    • What Clostridium difficile colitis?
    • How does Clostridium difficile cause colitis?
    • What are the symptoms of Clostridium difficile colitis?
    • Which antibiotics cause Clostridium difficile colitis?
    • How is Clostridium difficile colitis diagnosed?
    • How is Clostridium difficile colitis treated?
    • Why are there relapses of Clostridium difficile colitis?
    • How are relapses of Clostridium difficile colitis treated?
    • What is new in Clostridium difficile?
  • Ankylosing Spondylitis Ankylosing spondylitis is a type of arthritis that causes chronic inflammation of the spine. The tendency to develop ankylosing...learn more »
    In This Article
    Ankylosing Spondylitis Article
    • Ankylosing spondylitis facts
    • What is ankylosing spondylitis?
    • What causes ankylosing spondylitis?
    • What are ankylosing spondylitis symptoms and signs?
    • How is ankylosing spondylitis diagnosed?
    • What are ankylosing spondylitis treatment options?
    • Can ankylosing spondylitis be prevented?
    • What is the prognosis (outlook) for patients with ankylosing spondylitis?
    • What is in the future for patients with ankylosing spondylitis?
    • Where can people find more information about ankylosing spondylitis and learn about support groups?
  • Ulcerative Colitis Ulcerative colitis is a chronic inflammation of the colon. Symptoms include abdominal pain, diarrhea, and rectal bleeding....learn more »
    In This Article
    Ulcerative Colitis Article
    • Ulcerative colitis facts
    • What is ulcerative colitis?
    • What causes ulcerative colitis?
    • What are the symptoms of ulcerative colitis?
    • How is the diagnosis of ulcerative colitis made?
    • What are the complications of ulcerative colitis?
    • What are the treatments for ulcerative colitis?
    • What are ulcerative colitis medications?
    • 5-ASA Compounds
    • Systemic corticosteroids (including side effects)
    • Golimumab (Simponi)
    • What are immunomodulator medications?
    • Summary of medication treatment
    • Surgery for ulcerative colitis
    • Treatment by disease severity and location (based on ACG Practice Guidelines)
    • Are there any special dietary requirements for persons with ulcerative colitis?
    • What research is being done regarding ulcerative colitis?
  • Steroid Drug Withdrawal Corticosteroid drugs such as prednisone and prednisolone are commonly used to treat asthma, allergic reactions, RA, and IBD....learn more »
    In This Article
    Steroid Drug Withdrawal Article
    • Steroid withdrawal facts
    • Introduction
    • What are steroid withdrawal symptoms?
    • Discontinuing steroids
  • Chronic Pain Chronic pain is pain (an unpleasant sense of discomfort) that persists or progresses over a long period of time. In contrast to...learn more »
    In This Article
    Chronic Pain Article
    • Chronic pain facts*
    • Introduction to chronic pain
    • The A to Z of pain
    • How is pain diagnosed?
    • Pain management
    • What is the role of age and gender in pain?
    • A pain primer: what do we know about pain?
    • What is the future of pain research?
    • Spine basics: the vertebrae, discs and spinal cord
    • The nervous system
    • Phantom pain: how does the brain feel?
    • Chili peppers, capsaicin and pain
    • Marijuana for pain treatment
    • Nerve blocks for pain treatment
    • Where can I get more information about pain?
  • Costochondritis and Tietze's Syndrome Costochondritis is inflammation of the cartilage where the ribs attach to the sternum. Tietze syndrome affects the same region of...learn more »
    In This Article
    Costochondritis and Tietze's Syndrome Article
    • What is costochondritis?
    • What causes costochondritis?
    • What are symptoms of costochondritis, and what is Tietze's syndrome?
    • How are costochondritis and Tietze's syndrome diagnosed?
    • What is the treatment for costochondritis and Tietze's syndrome?
    • What is the prognosis for costochondritis and Tietze's syndrome?
    • Can costochondritis and Tietze's syndrome be prevented?
  • Lactose Intolerance In lactose intolerance, the digestive system cannot digest lactose (the main sugar in milk). Symptoms of lactose intolerance...learn more »
    In This Article
    Lactose Intolerance Article
    • Lactose intolerance facts
    • What is lactose intolerance?
    • What causes lactose intolerance?
    • What are the symptoms of lactose intolerance?
    • How are lactase deficiency and lactose intolerance diagnosed?
    • Elimination diet
    • Milk challenge
    • Breath test
    • Blood glucose test
    • Stool acidity test
    • What are the sources of lactose in the diet?
    • How is lactose intolerance treated?
    • What are the long-term consequences of lactose intolerance?
    • What is new in lactose intolerance?
  • Inflammatory Bowel Disease (Intestinal Problems of IBD) The inflammatory bowel diseases (IBD) are Crohn's disease (CD) and ulcerative colitis (UC). The intestinal complications of...learn more »
    In This Article
    Inflammatory Bowel Disease (Intestinal Problems of IBD) Article
    • Intestinal bowel disease facts
    • What is inflammatory bowel disease (IBD)?
    • What are the intestinal complications of IBD?
    • Are the intestinal complications of ulcerative colitis and Crohn's disease different?
    • Do intestinal ulcers occur in IBD?
    • How are ulcers in IBD diagnosed and treated?
    • Does gastrointestinal bleeding occur in IBD?
    • How is gastrointestinal bleeding in IBD diagnosed and treated?
    • How do intestinal strictures form in IBD?
    • What are symptoms of intestinal strictures, and how are they diagnosed and treated?
    • What are intestinal fistulas?
    • What symptoms do fistulas cause and how are they diagnosed and treated?
    • What are fissures and how are they treated?
    • What is small intestinal bacterial overgrowth (SIBO)?
    • Does colon cancer occur in IBD?
    • What should be done about polyps in IBD?
    • What is toxic megacolon and what are its causes and symptoms?
    • What kind of malabsorption occurs in IBD?
  • Psoriatic Arthritis Psoriatic arthritis is a disease that causes skin and joint inflammation. Symptoms include painful, stiff, and swollen joints,...learn more »
    In This Article
    Psoriatic Arthritis Article
    • Psoriatic arthritis facts
    • What is psoriatic arthritis?
    • What causes psoriatic arthritis?
    • What are risk factors for developing psoriatic arthritis?
    • What are psoriatic arthritis symptoms and signs?
    • How does the doctor diagnose psoriatic arthritis?
    • What is the treatment for psoriatic arthritis?
    • Disease-modifying medications
    • What are complications of psoriatic arthritis?
    • What is the outlook (prognosis) for patients with psoriatic arthritis?
    • Can psoriatic arthritis be prevented?
    • Is there a psoriatic arthritis diet?
    • What does the future hold for patients with psoriatic arthritis?
  • SIBO (Small Intestinal Bacterial Overgrowth) SIBO (Small intestinal bacterial overgrowth) is a condition in which invasive bacteria gather in the small intestine causing...learn more »
    In This Article
    SIBO (Small Intestinal Bacterial Overgrowth) Article
    • Small intestinal bacterial overgrowth (SIBO) facts
    • What causes SIBO?
    • Who is at risk for SIBO?
    • What are the signs and symptoms of SIBO?
    • How is the diagnosis of SIBO made?
    • What is the treatment for SIBO?
    • Can SIBO be prevented?
    • What is the prognosis for SIBO?
  • Erythema Nodosum Erythema nodosum is a skin inflammation that results in reddish, painful, tender lumps most commonly located in the front of the...learn more »
    In This Article
    Erythema Nodosum Article
    • What is erythema nodosum?
    • What causes erythema nodosum?
    • What are the signs and symptoms of erythema nodosum?
    • How is erythema nodosum diagnosed?
    • Can erythema nodosum be confused with other conditions?
    • How is erythema nodosum treated?
  • Crohn's Disease Second Source article from The Cleveland Clinic...learn more »
  • Crohn's Disease Second Source article from Government...learn more »
  • Bowel Incontinence Bowel or fecal incontinence refers to the loss of voluntary control of stool, or bowel movements. The condition can include...learn more »
    In This Article
    Bowel Incontinence Article
    • Bowel incontinence (fecal incontinence) definition
    • What causes bowel incontinence?
    • What are the symptoms of bowel incontinence?
    • How is bowel incontinence diagnosed?
    • What is the treatment for bowel incontinence?
    • What about bowel incontinence in children?
    • Can bowel incontinence be prevented?
    • What is the prognosis for bowel incontinence?
  • Bronchiectasis (Acquired, Congenital) Bronchiectasis has three types: 1) cylindrical bronchiectasis, 2) saccular or varicose bronchiectasis, 3) and cystic...learn more »
    In This Article
    Bronchiectasis (Acquired, Congenital) Article
    • What is the definition of bronchiectasis?
    • What is bronchiectasis?
    • Who is at risk for bronchiectasis?
    • What causes bronchiectasis?
    • What are the types of bronchiectasis?
    • What are the signs and symptoms of bronchiectasis?
    • When should I contact my doctor for bronchiectasis?
    • How is the diagnosis of bronchiectasis made?
    • What is the treatment for bronchiectasis?
    • Can bronchiectasis be prevented?
    • What is the prognosis of bronchiectasis?
  • Primary Sclerosing Cholangitis (PSC) Primary sclerosing cholangitis or PSC is a disease of the liver. The cause of PSC is not known. Symptoms may include itching,...learn more »
    In This Article
    Primary Sclerosing Cholangitis (PSC) Article
    • Primary sclerosing cholangitis (PSC) definition
    • What causes primary sclerosing cholangitis?
    • What are the risk factors for primary sclerosing cholangitis?
    • What are the signs and symptoms of primary sclerosing cholangitis?
    • How is the diagnosis of primary sclerosing cholangitis made?
    • What is the treatment for primary sclerosing cholangitis?
    • Medications
    • Liver transplant
    • What complications are associated with primary sclerosing cholangitis?
    • Can primary sclerosing cholangitis be prevented?
    • What is the prognosis and life expectancy for a person with primary sclerosing cholangitis?
  • The Digestion Process (Organs and Functions) Digestion is the complex process of turning food you eat into the energy you need to survive. The digestive process also involves...learn more »
    In This Article
    The Digestion Process (Organs and Functions) Article
    • Digestion definition
    • What is digestion?
    • The mouth
    • The pharynx and esophagus
    • The stomach and small intestine
    • The colon, rectum, and anus
    • Three accessory digestive organs (pancreas, liver, gallbladder)
  • Colon Cancer Prevention Colo-rectal cancer is both curable and preventable if it is detected early and completely removed before the cancerous cells...learn more »
    In This Article
    Colon Cancer Prevention Article
    • Colon cancer prevention facts
    • Introduction to colon cancer prevention
    • When should colon cancer screening begin?
    • What are the risk factors for colorectal cancer?
    • What measures to prevent colorectal cancer have proven effectiveness and long term safety?
    • What measures to prevent colorectal cancer probably are effective but may have long term adverse side effects?
    • What measures to prevent colorectal cancer probably are effective and safe?
    • What prevention measures have been found to be ineffective?
    • What about genetic testing for colon cancer?
    • Who should consider genetic counseling and testing?
    • Why is genetic counseling and testing important in hereditary colon cancer syndromes?
    • What can be done now to prevent colorectal cancer?