Prince William's wife, Kate Middleton, went to the hospital for a planned abdominal surgery on Tuesday at the London Clinic.
Kate just celebrated her 42nd birthday earlier this month.
The folks at Kensington Palace shared that the surgery went well, and she'll probably stay in the hospital for 10 to 14 days.
Kate wants to say sorry to everyone who was looking forward to seeing her at upcoming events because she has to delay them.
Once she leaves the hospital, Princess Kate will rest and get better at her home in Windsor.
The Prince and Princess of Wales moved to Windsor in 2022 from their old home in London.
Princess Kate's last time out in public was on Christmas.
Doctors say she probably won't be back to her royal duties until after Easter based on their advice.