Summary: Nausea in people with cancer occurs but not in everyone, even when they get chemotherapy. The commonest cause is chemotherapy and therefore it is predictable for any chemotherapy when it might occur. Treatments are usually very effective. Cancers in the liver, cancers of the stomach or brain, or pain in a person with any cancer can be nauseating. Great progress has been made with drugs that prevent or treat nausea. The chemotherapy and expectation for when the nausea may occur determines which drugs may be best for you. Nausea or short periods of vomiting are not helpful. You should call your physician for persistent nausea. Prior discussions with your physician can determine for you when to call. If something unexpected occurs--- fever with the nausea, a bad headache, you feel badly all over and its 3 to 5 days after you had chemotherapy ---you should call your physician.
