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Embryo reduction is indicated in women who become pregnant with three or more babies. In these cases, the reduction is usually performed between the 10th and 13th week of gestation. It is done at this stage of pregnancy because, after the first-trimester ultrasound, certain signs and indicators can be observed.
Read the full article on: Multifetal pregnancy reduction – the how and why of the procedure ( 59).
By Paloma de la Fuente Vaquero M.D., Ph.D., M.Sc. (gynecologist), Zaira Salvador B.Sc., M.Sc. (embryologist) and Michelle Lorraine Embleton B.Sc. Ph.D. (biochemist).
Last Update: 06/18/2025
