symptoms of digestive disorders
digestive disorders
Nausea and Vomiting in Adults
Nausea and vomiting result when the vomiting center in the brain is activated. Causes typically involve disorders of the digestive tract or the brain, or ingested substances. The most common causes of nausea and vomiting are Gastroenteritis (infection of the digestive tract) Drugs Toxins Nausea and vomiting commonly occur with any dysfunction of the digestive tract but are particularly common with . A less common digestive tract disorder is Many drugs, including alcohol, opioid analgesics (such asmorphine), cannabis (marijuana), and chemotherapy drugs, can cause nausea and vomiting. Toxins, such as lead or those found in some foods and plants, can cause severe nausea and vomiting. Less common causes of nausea and vomiting include Brain or central nervous system disorders Motion sickness Metabolic changes or bodywide (systemic) illness Psychologic disorders Cyclic vomiting syndrome The vomiting center also can be activated by certain brain or central nervous system disorders, including infections (such as Introduction to Meningitis and The balance organs of the inner ear (vestibular apparatus) are connected to the vomiting center. This connection is why some people become nauseated by the movement of a boat, car, or airplane and by certain disorders of the inner ear (such as Purulent Labyrinthitis and Nausea and vomiting may also occur when there are metabolic changes in the body, such as during early pregnancy, or when people have Diabetes Mellitus (DM) that is severely out of control or severe Chronic nausea and vomiting syndrome is a functional disorder. That is, the nausea and vomiting are not caused by a physical or specific psychologic disorder but rather may be a problem with the way the brain and gastrointestinal system communicate. In this syndrome, people have bothersome nausea, vomiting, or both that occur at least once a week for at least 6 months including the last 3 months and that have no identifiable cause after testing has been done. Psychologic problems also can cause nausea and vomiting. Such vomiting may be intentional. For instance, people who have bulimia make themselves vomit to lose weight. Or it may be unintentional. For instance, children who are afraid of going to school vomit as a response to their psychologic distress. Cyclic vomiting syndrome is an uncommon disorder in which people have severe attacks of vomiting (or sometimes only nausea) at varying intervals. People feel normal between attacks. Although it usually starts in childhood, it sometimes lasts until adulthood. Cyclic vomiting that begins in adulthood is often due to chronic marijuana use. The vomiting can be relieved by a hot bath and goes away after people stop using marijuana. 