In a major breakthrough for pregnancy research, scientists have 3D bioprinted “mini placentas”. The miniature organs, or “organoids”, closely resemble human placental tissue, providing an accurate model for studying the early placenta – something that has been sorely lacking until now.

The placenta plays a vital role in supporting fetal development, and its dysfunction is linked to numerous pregnancy complications, including miscarriage, preeclampsia, preterm birth, and stillbirth. These conditions can also have long-term health implications for both mother and baby, increasing the risk of future cardiovascular, endocrine, and neurological diseases. Yet, treatment options are limited, as is our understanding of placental biology.