16 May 2019 A high-risk pregnancy is defined as a greater likelihood of an adverse outcome for the mother and / or child during or after pregnancy and childbirth, above the average baseline risk of the general population, due to the presence of one or more risk factors. Fortunately, few women have a high-risk pregnancy. However, in more complicated cases, proper, timely monitoring is essential. For example: When there is a chronic illness; When medical or pregnancy-related problems arise during the nine months. Some pregnant women have risk factors from the beginning of pregnancy and are considered high risk from the start, in cases such as: Chronic disease (high blood pressure, diabetes, heart disease, epilepsy, thyroid disease, among others); A previous premature delivery; A history of unsuccessful pregnancy (foetal death or severe restrictions on foetal growth). In other cases, there are situations in a normal pregnancy that can make a pregnancy high risk , for example: High blood pressure; Gestational diabetes; Cholestasis of pregnancy; Changes in foetal growth and / or the amniotic fluid. This article was written with the support of physicians and other clinical professionals from the Hospital da Luz network. The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.