Vomiting is the term with which everyone is familiar. Vomiting is the forceful ejection of the contents of one’s stomach through the mouth and sometimes through the nose. There are various causes of vomiting and one cannot be sure about the cause if it occurs. The causes may range from gastritis or poisoning to brain tumors, or elevated intracranial pressure (ICP). The feeling that one feels that he is about to vomit is known as nausea. It usually proceeds, but doesn’t always lead to vomiting. Antiemetics are occasionally essential to repress nausea and vomiting, and in severe cases where dehydration occurs, intravenous fluid may need to be administered to reinstate the volume of the fluid.

The medical branch which investigates vomiting, emetics and antiemetics is called emetology. Vomiting is something that needs to be treated as soon as possible, because extreme vomiting may result in loss of water and electrolytes from the body, causing dehydration. While vomiting all the undigested or semi-digested present in the stomach are vehemently expelled out through the mouth and sometimes through the nose. Chronic vomiting makes your body weak and you may suffer from various different illnesses. But question arises why or how does vomiting occurs.

There are several causes of vomiting. Certain Medications can cause vomiting as a side-effect. Especially the medicines prescribed for cancer patients are notorious for causing vomiting and nausea. Alcohol can also cause vomiting but you may not vomit immediately after having alcohol. In fact, if you drink alcohol at night, you might vomit in the morning and it is known as ‘hangover’. Likewise, vomiting can also occur during pregnancy. There are several other reasons which cause vomiting.

For more detail about vomiting, browse through our next sections.