I'm very concerned because my dr says I have piles (ive been bleeding on and off since 2013) . My problem is most of the time the blood is bright red like it should be but occasionally the blood will be dark red... im scared for my life but my doctor said that its okay as long as I dont see tar like black stools. But I thought that dark red means that there could be something seriously wrong. I do get black specs on my stools and on my toilet paper (sorry for being gross) but they are solid black bits so they cant be blood and ive read others who get this who are fine so thats not worrying me. Should I be concerned? I noticed dark red blood over a month ago but I can't say I havent always had it. Help please