Saralnama5.8 kg baby boy Cassian became an internet sensation after his birth in the United States earlier this year. His story spread worldwide when his mother and hospital shared the news recently. While Cassian is heavier than average, he's not unique. A baby boy in Brazil weighed 7.3 kg at birth in 2023. Babies over 4 kg or 4.5 kg are called macrosomic. In Australia, about 9-10% of babies are born large. Big babies can lead to more birth complications, but this isn't always the case. Reasons for large babies include genetics, overdue pregnancies, maternal diabetes, and higher pre-pregnancy weight. Ultrasounds poorly predict actual birth weight. Women are advised to maintain a healthy weight, eat a balanced diet, and exercise regularly during pregnancy. (Updated 11 Oct 2025, 19:40 IST; source: link)
Key Points
- 5.8 kg baby boy Cassian became an internet sensation after his birth in the United States earlier this year
- His story spread worldwide when his mother and hospital shared the news recently
- While Cassian is heavier than average, he's not unique