I have also been told this. I think there is an element of truth to it. The main reason behind it is probably due to the standard 5ASA drugs, like asacol, not reaching the left (descending) colon. Enemas can be a god send here but many people, including me, have a real problem retaining them. And so left sided colitis can be notoriously difficult to treat.
My first flare was pan-UC, and I managed to get into a 2 year remission. But, the last 4 years I have had left-sided UC flare and I cannot get into remission.
I actually read somewhere the majority of people who have their colons removed due to refractory UC, have left-sided disease.
27 yr old, female lower left moderate to severe UC since 2002
Colazol 3 pills 2x per day, 6 MP 50 mgs per day
Flax Seed Oil 2 per day, VSL#3 4 pills per day, Food enzymes 2 b4 meals when needed
canasa when needed, can't do rowasa!
Next Remicade Treatment Jan 31st