Most babies take months to smile, but Ayla Summer Mucha stunned her parents by smiling immediately after birth. Her constant grin, due to a rare condition called bilateral macrostomia, made her a viral sensation.

Born in Australia on December 30, 2021, Ayla’s condition—where the corners of the mouth don’t fuse properly—was undetected in ultrasounds, shocking her parents. With only 14 documented cases, even doctors were unprepared.

The condition affected Ayla’s ability to nurse, leading doctors to recommend surgery. While some online trolls made negative remarks, many praised her unique beauty. Now at 4 years old, it appears she may have undergone corrective surgery.