Princess Kate Middleton is always stunning at royal events, and Trooping the Colour was no different. But this year the online excitement was more about her much-awaited comeback following a protracted absence from the public eye than it was about her amazing style. Online debate about Kate's health—more especially, allegations of her having prophylactic chemotherapy for a cancer fight—has driven great activity.

Many onlookers commented on the princess's stunning look during the birthday celebration of the king, which spurred conversations on her health. People started wondering how she could seem so well-rested and keep her lustrous, hazel-colored hair even on chemotherapy. "Can you have chemotherapy and not lose your hair?" some asked.

Medical experts stress that not every chemotherapy course results in hair loss. While some medications cause notable hair thinning or loss, others have less negative effects overall. Given that particular details of Kate's prophylactic chemotherapy haven't been revealed, it's likely her treatment reduced hair loss.

When comparing former and present pictures of the princess on the official Buckingham Palace website and Instagram, some noted variations and speculated about possible cosmetic surgery during her time away from public view. One X (previously Twitter) user questioned, "I wonder if this was more reconstructive work after an incident rather than elective surgery."

Rumors regarding the Princess of Wales have ranged from body double allegations to AI-generated images. Royal supporters concentrated on the positive—seeing Kate healthy, happy, and interacting with the public despite her previous difficulties—despite the conjecture.