Here's the thing:
LGD can come and go. HGD is much more of a concern and there is no controversy about it. Total colectomy is always recommended for HGD.
But, the problem with LGD is that it is a complete roll of the dice. Nobody can tell you if cancer is definitely in your future. However, after decades of collecting data, what they have found is that your cancer risk definitely goes up once LGD is found.
What is tricky is that the dysplasia of inflammation is difficult to sort out from the dysplasia of precancer. In addition, cancer in the presence of UC tends to be flat lesions, not beginning in a polyp like other people. These flat lesions can go undetected and arise in a completely different area than prior findings of dysplasia. It is impossible to biopsy the entire colon and rectum. It is not that uncommon to find undetected cancer in a colectomy specimen that was removed for dysplasia, particularly HGD.
So, once there are findings of dysplasia, it is sort of like your "free pass." it is up to you whether you want to use that pass, or wait and see if a better offer comes later. Doctors start getting nervous once there is dysplasia, because they cannot guarantee any outcome and they start thinking in "better safe than sorry" terms.
There are a few members here who took the gamble and lost, later winding up with colon cancer, chemo, radiation, and lifelong worry.
My advice: get the pathology consult and have a colectomy if it is recommended. It is natural to be afraid of the surgery, but there are other things to be afraid of too. Hopefully, it will be all good news and just a false alarm.
Good luck!
Jan