I discovered a bump on my anus when I was taking a shower a few weeks ago. I looked in a mirror as I squatted, and saw a white looking bump- appeared to come from anus. Dr. couldn't find anything by looking. I felt this for about a week, looked again squatted over a mirror and the bump seemed to be right behing my anal opening by a fraction of an inch. Now I looked again and it appears once more to be a pale bump coming from my anal opening. When it appears visible, I suffer from gas, upper and lower. Also, I get nauseous feelings and a feeling of fullness and needing to have a BM. Is it a hemorrhoid or possibly something else. There is not much pain, just feel inflamed in the anal area. I do not want to have painful tests to check for hemorrhoids. I understand they can be checked by a rectal exam by a GI doctor, or that he may perform a proctoscope. All replies appreciated. I do have IBS, but never anything like this bump associated with it, and also no nausea.