The world has been concerned about Princess Kate since she went through abdominal surgery in January of this year. It was thought that she would be back to her royal duties quickly but she disappeared from sight for quite some time.

On March 22, a video came out on Instagram in which Kate shared her recent diagnosis of cancer. They found the cancer during the abdominal surgery and she said that she was now going through preventative chemotherapy.

Although she let people know of the cancer diagnosis, she didn’t share any specifics about the type of cancer she had. Doctors are now speaking about the situation, taking some educated guesses at the cancer type that she may be going through.

One of those physicians is Dr. George Crawford. He said that the Princess is likely dealing with uterine or ovarian cancer.

Dr. Crawford explained: “I’m guessing what probably happened is they were doing just that—assuming they were removing just a cyst or removing her uterus for something benign, [and] when they sent it for evaluation, it came back [as having] cancer.”

Dr. Marc Siegel is another medical expert who spoke with the news and said that he feels Kate either has ovarian or colon cancer. He went on to say that he did not feel that the cancer type was the most important thing to consider.

Dr. Siegel went on to explain that identifying and diagnosing cancer early is the most important thing to make it treatable. He also feels that the privacy of the royal family is paramount at this time as well.

You can learn more about Dr. Siegel’s professional considerations and why he feels that Kate has either colon or ovarian cancer in the following video:

In the video, he mentions that he feels she likely has colon cancer because she has not lost her hair and due to the surgery location. Some of the more common symptoms of colon cancer include diarrhea, blood in the stools, stomach cramps, a rectal lump, and fatigue.

Diagnosis is often given through a colonoscopy, ultrasound, or MRI. Common treatments include surgery, chemotherapy, radiation, and immunotherapy.