Alcoholic hepatitis is caused by excessive and chronic alcohol use and can progress to fatty liver and cirrhosis if the alcohol abuse continues. This video explores who is at risk for this disease and how your health care provider makes the diagnosis.

Bacterial food poisoning occurs after eating contaminated food. A variety of bacteria can cause foodborne illness, and most cases clear up in a few days. This video examines the culprits that cause this illness, typical symptoms, and preventive steps you can take.

Cholelithiasis is another name for gallstones. The gallbladder is a small organ attached to your liver that stores the bile your liver makes. Under the right conditions and over time, gallstones can form in the gallbladder. This video explains how gallstones develop and what treatments are available.

Chronic pancreatitis is a persistent inflammation of the pancreas, the gland that secretes digestive enzymes and the hormones insulin and glucagon. Alcohol abuse is the most common cause of this condition. This video discusses how this condition develops and what treatment your doctor may recommend.

Colorectal cancer is the third most common cancer in men and women in the US. A low-fiber, high-fat diet appears to increase the risk for this type of cancer. In this video, you'll learn how colon cancer can be detected early and therefore, treated more successfully.

Colonoscopy is a procedure that lets your doctor see directly inside your entire colon using a flexible tube. It can detect intestinal problems such as bleeding or early signs of colorectal cancer. In this video, you'll learn what you might experience during a colonoscopy and what to expect given your particular results.

Diverticuli are herniations in the muscular layer of the colon that produce small, saclike swellings. Diverticulitis occurs when diverticuli become inflamed and infected. This video examines the possible causes of this condition, typical symptoms, and available treatments.

Diverticulosis occurs when part of the colon bulges through a muscular layer into the abdomen, called diverticula. Learn about this condition, possible complications, and what you should do if you have diverticulosis.

An upper endoscopy (EGD) allows a doctor to visualize your esophagus, stomach, and duodenum, or the upper part of your small intestine. EGD uses a special tube to help diagnose illnesses such as acid reflux or peptic ulcer disease. In this video, you'll learn what you might experience during the actual procedure, as well as its benefits, and any potential risks.

ERCP stands for endoscopic retrograde cholangiopancreatography, a diagnostic procedure used to evaluate problems of the liver, gallbladder, bile ducts, and pancreas. The procedure combines the use of X-rays and an endoscope. This video explains how this procedure works and when it is warranted.

Sigmoidoscopy allows a doctor to examine the lower portion of your colon using a thin tube. It may be used to help diagnose certain intestinal problems that can cause symptoms such as constipation or diarrhea, and abdominal pain. Abnormal growths may also be detected. This video describes a sigmoidoscopy and how it may inform you about your colorectal health.

Gastritis is an inflammation of the lining of the stomach. It can have a number of causes, but most are lifestyle excesses—smoking, too much alcohol, too much caffeine, and overeating. This video explores the many causes of gastritis, recommended treatments, and preventive steps.

Gastroesophageal reflux disease (GERD) is more commonly known as acid indigestion or heartburn. It is a burning feeling behind the breastbone. This video takes a look at the possible causes of GERD, typical symptoms, and when treatment is warranted.

Hepatitis is an inflammation of the liver. The hepatitis A virus is one of five that cause this disease. This video takes a closer look at hepatitis A—how it is spread and what you can do to prevent its transmission.

Hepatitis B is one of five virus types that cause hepatitis, an inflammation of the liver. Hepatitis B is considered a sexually transmitted disease. This video takes an in-depth look at hepatitis B—how common it is, how it is spread, and what you can do to prevent its transmission.

The hepatitis C virus is another type of hepatitis virus that causes an inflammation of the liver. HCV is transmitted though exposure to infected blood or blood products. In this video, you'll find out more about how it's transmitted, what treatments are available, and what you can do to protect yourself from this disease.

Irritable bowel syndrome (IBS) is a disease affecting the intestines. The cause of IBS is not known, but stress and emotions are thought to play a role. This video gives more details about this common disorder, which affects up to 15 percent of Americans.

Lactose is the main sugar in cow's milk. People who have difficulty digesting milk have lactose intolerance. The condition is caused by a shortage of the enzyme lactase, which breaks down the lactose into a form that can be used by the body. This video explains how you can cope with this condition.

A child who has difficulty digesting cow's milk has lactose intolerance. Lactose is the main sugar in cow's milk, and the inability to digest lactose is caused by a shortage of the enzyme lactase. This video tells you what to do as a parent if your child has this condition.

What should you eat if you have diabetes? The same healthy foods that people without diabetes should eat. The secret to a healthy diet is eating a wide variety of foods, especially fruits, vegetables, and whole grains. This video offers advice on what foods to choose.

Mononucleosis is an acute infectious disease that affects the respiratory system, the liver, and the lymphatic system. It is caused by the Epstein-Barr virus. This video looks at who is at risk for this infection and typical symptoms to watch for.

People can become obese by taking in more calories than they burn. Obesity also appears to be influenced by genetics. This video discusses the health risks associated with obesity and what treatment and lifestyle changes are commonly recommended.

Peptic ulcers are erosions in the lining of the esophagus, stomach, or duodenum. Ulcers in the stomach are called gastric ulcers, and duodenal ulcers if in the duodenum. This video explains the possible causes of this disease, including the bacterium Helicobacter pylori.

Pseudomembranous colitis is an inflammatory disorder of the colon associated with antibiotic use. Bacteria such as Clostridium difficile, which are usually present in the colon, can flourish when antibiotics are taken. This video explains how this disorder develops and what treatment is recommended.