A 30-year-old mother recently went viral on TikTok for sharing the story behind her incredibly rare type of twins. In the video, which has garnered over 20 million views and 8,000 comments, user ...

Identical (monozygotic) twins develop from a single egg-sperm combination that splits into two. If the split is delayed, usually a week or so after conception, the processes of growing a placenta, ...

Mono-mono twins are an incredibly rare type of identical twins who share both a placenta and an amniotic sac. While this makes for a high-risk pregnancy, advances in monitoring and treatment have ...

Jesy Nelson is "hoping and praying" for the survival of her unborn twins. The former Little Mix singer broke down in tears as she revealed she has been undergoing ultrasound scans twice a week because ...