A patient with severe hyperemesis gravidarum persisting throughout pregnancy is described. She had marked abnormalities of liver function and failed to respond to conservative management. Total parenteral nutrition was used to maintain her nutritional status as well as that of the foetus. Her vomiting continued and was complicated by severe oesophagitis. On delivery her symptoms settled, but she later developed an oesophageal stricture. Changes in liver function tests are described.