I am a 25 year old gay male. At birth, most of my intestines burst, and they were removed. I now only have 1/2 of my small bowel left - and have lived fine with no complications for my entire life. I am married in a gay relationship, and while I am not the "bottom" in the relationship, I do engage in anal sex from time to time, whether it be from a penis, fingers, or sex toys. I have had absolutely no complications or issues at all. However, I have been like this for more than 25 years - however, your surgery was a few years ago, and I'm sure your body has healed in that time frame. So a short answer to your question: yes, anal sex is possible.