Appendicitis is the inflammation of the appendix, often caused by obstruction or infection. It commonly affects young men and may show seasonal trends. Symptoms include abdominal pain, vomiting, and fever. Risk factors include family history, infections, and bowel diseases.
The palace says the Prince and Princess wish to say a huge thank you to the entire team at The London Clinic, especially the dedicated nursing staff, for the care they have provided.
The former Kate Middleton is expected to return to public duties after Easter, the palace said.
The Vatican said there were no complications during the three-hour surgery, which required Francis to be under general anaesthesia.