Tapeworms infest the intestines of most mammals, including humans. They may grow up to 50 feet long and live for nearly two decades. Sometimes, an infested person may be asymptomatic and the infestation will go unnoticed. Frequently, however, a person may experience vomiting, nausea, loss of appetite and weakness. As the infestation progresses, weight loss occurs, and tapeworm segments may appear in the stool. In severe cases, tapeworms may interfere with normal bowel movements or cause abdominal pain. Read the rest of this entry »