Two weeks ago I had a bout of constipation and was straining a lot to go. The next day a grape sized lump formed around my anus that is purplish and was very painful and itchy. I began using witch hazel, vaseline and keeping the area clean, and now the lump has reduced to about the size of a pea but it is still there. It no longer itches or burns, but some days I have a deep ache in my tailbone (don't know if it's related). There is no blood and my bowel movements have returned to normal. I feel like the past couple of days it isn't really getting smaller, but is just at a standstill. Does anyone know what this could be? Of course, I am quite the hypochondriac and I am scared that it's something serious like colon cancer. I'm a 27 year old female, fairly healthy, except a bit of anxiety. I barely noticed it when I don't think about it, but it hasn't gone away completely and I am rounding week 3.