I Have Had Some Bleeding In My Butt Crack. My

I have had some bleeding in my butt crack. My Dr. did an exam about 4 months ago and didn't see anything. I'm 45 so he recommended a scope. Scope turned up normal. About a week ago I felt a lump as I wiped. I pushed on it a little and it popped with dark & light colored blood coming out. It was fine for a few days and now reoccurred and I popped it again with the same results??