Welcome to the forum.
This aspect doesn't look wonderful, but a lot is based on the rest of the chart. It has been in its sign and house in your chart all your life, for example; without this type of concern. Your health generally is a 6th house matter; your body, a first house matter; and the uterus would be ruled by Scorpio and the 8th house.
If you care to post it, the free charts at Astrodienst at
www.astro.com are the easiest to read. Probably your natal chart with transits for the time of your future surgery would be best. You can either save the chart to your computer, and then upload it as a clickable thumbnail, or from a cell phone you can link your chart through a service like imgur.com . The main thing is to make sure the chart is big enough so that we can read the degrees.
I will say that Chiron deals with both physical and emotional wounds. Possibly a hysterectomy doesn't bother you and you see it as a welcome relief. Or, you may feel a sense of loss, depending upon your age and ideal family. You might let us know which it is for you.