I put yoplait flavored yogurt on my anus to help with what i thought was a anal yeast infection, but could it possibly cause bumps in my anal canal ?

Yeast Infections: Wow. You put yeast and acidophilus on a yeast infection? In the U.S. Most anti-yeast medications are available over the counter without a need for prescription. Perhaps it would be best no to put yogurt on your infection and to put medication designed to rid you of the infection on it instead.

Medical evaluation: The cultures in most yogurts are dead. Kefir is a rich source of probiotics. There are also probiotic pills or special yogurts that are rich in live cultures. The good news is that taking the probiotics orally will help you -so you don't have to place yogurt internally. However, if you have bumps in your anal canal that isn't likely to be due to yeast. See your doctor for eval.