关键词: 再次妊娠, 高龄, 肥胖, 妊娠期代谢性疾病, 预防, 管理

Abstract: With the improvement of people's living standards and the implementation of the three-child policy，the incidence of gestational obesity and advanced pregnancy is increasing.Elderly and obese women with metabolic disorder before pregnancy are prone to metabolic diseases during pregnancy after their first pregnancy，which cannot be completely recovered after postpartum，leaving metabolic defects and injuries，which leads to the fact that elderly and obese women are more prone to metabolic diseases during their second pregnancy，causing adverse pregnancy outcomes.It is more difficult to manage maternal blood glucose，blood pressure and protect vital organ function when elderly and obese women become pregnant again.Therefore，it is very important for elderly and obese women to prevent metabolic diseases of pregnancy during their second pregnancy，which should be strengthened through pre-pregnancy-pregnancy-postpartum.

Key words: re-pregnancy, advanced age, obesity, gestational metabolic disorders, prevention, management