I smoked for several years before I had symptoms of UC. I was in the process of quitting, and down to one cig a day, and started getting sick. I started smoking a month later, symptoms disappeared. When I got pregnant, I quit again, and went into a full blown attack. Talk about horrible...
Anyway, there was definitely a direct link with smoking & UC for me, personally. I have heard UC referred to a nonsmoking disease. The benefits of being a nonsmoker are much greater, but, if I was to get really sick, and nothing else helped, I'm not sure that I wouldn't start smoking again. Hopefully, it will not come to that.
Lanette