Black diarrhea is often the sign of blood in the digestive tract that can have multiple causes depending on where the bleeding is coming from. Locations can range from anywhere from the nose or mouth to the colon, though bleeding lower in the GI tract tends to present as blood in the stool more than as black diarrhea.

Stomach cramps and diarrhea occur with many digestive system ailments including infections, food intolerance and inflammatory bowel disease, among others.

When loose, watery stools occur frequently, it’s important to investigate the cause. Sometimes this is related to diet, such as a high fiber intake or poor digestion of certain types of foods. However, frequent, loose stools can also be related to infections or chronic, or ongoing illnesses.

Chronic ear popping usually results from a problem called eustachian tube dysfunction, which commonly occurs due to conditions like nasal allergies and chronic sinusitis, among others.

Diarrhea occurs in seniors for a variety of reasons. Common causes include infections, bowel disorders and medication side effects, among others.

Diarrhea lasting 5 days constitutes acute diarrhea, which typically comes on suddenly and is most commonly caused by an intestinal infection.

Foul-smelling diarrhea occurs with a variety of conditions, including certain intestinal infections, malabsorption of dietary fats, and digestive tract bleeding.

Babies normally have soft -- sometimes runny -- bowel movements, especially if they are breast fed. If the baby is drinking formula and develops diarrhea, his parents may wonder if the formula is causing the problem. The doctor can help the parents pinpoint the cause of diarrhea and prescribe a change in formula.

Most cases of diarrhea in toddlers are caused by viral infections. Bacteria, parasites, food allergies and medication side effects are other possible causes.

Antibiotics are indispensable in fighting infections, but not everyone can take them without side effects. The Bastyr University’s Center for Natural Health estimates that as many as 39 percent of patients who take antibiotics develop diarrhea as a result.

Many chewing gums are made with sugar alcohols, a type of sweetener that is used in place of sugar. Since sugar alcohols contain fewer calories per gram compared to sugar, these may assist you with weight-loss efforts. Sugar alcohols are also better for dental health since they do not promote cavities.

Nausea , or the feeling of stomach sickness including an urge to vomit, can often be accompanied by other gastrointestinal symptoms such as diarrhea. These two symptoms are a relatively common experience for most people and are usually minor annoyances that go away on their own within one to three days.