Kim Dong-hyun and Song Ha-yul's fourth child arrived Sept. 18 weighing 3.21kg. Doctors warned her uterine membrane was dangerously thin.

Kim Dong-hyun and his wife Song Ha-yul had their fourth child on September 18. A son. 3.21kg. The delivery carried serious medical risk.
In recovery, Song Ha-yul relayed what the doctor told her: "The membrane was so thin that I probably won't be able to give birth again. It was almost on the verge of tearing." Kim Dong-hyun's reaction: "Wow, it was really dangerous."
The fear started before the operating room doors closed. Song Ha-yul admitted the day before: "I'm so scared." Experience hadn't eased it. "Since it's the fourth, rather than thinking I'll do better, I'm more scared. Because I know, I'm more scared."
Kim Dong-hyun sat alone outside. The nerves felt different this time. "With the third, I felt 100% safe so I wasn't worried at all, but with the fourth I'm very worried — more nerve-wracking than when the first was born." He'd been reading up. "A fourth cesarean section is high-risk, I heard. Pregnancy and childbirth are not easy. Everyone gives birth so well that it looks safe, but when you study it, it's really a dangerous thing."
When the baby cried from inside the room, he whispered: "I hear the baby's cry — the baby is coming." Then to the medical staff: "The mother is healthy, right?"
Their fourth child means two sons and two daughters. The full vlog — "The fourth's first cry that made dad Kim Dong-hyun sob" — went up on their YouTube channel 동현이넷 the same day.
Kim Dong-hyun and Song Ha-yul married in 2018. Their first son came in 2019, daughters in 2021 and 2023.
After delivery, he nearly cried remembering the moment Song Ha-yul asked for a hug before surgery. He ended the vlog speaking to her: "She endured so well for 10 months. Once the youngest is born, I hope my wife recovers healthily — and since there will be no more childbirth, let's live happily together."
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