Im sorry all I did not make myself clear. I also thought that my sphincter muscles was causing the problem simply because I had run out of possible reasons for this stink. It was not causing the problem. What caused my tight sphincter muscle was the excessive flatulence I suffered from and all the years of holding it in instead of letting it out. This reprogrammed my muscles to go into spasms which interferred with me emptying my bowels. My sphincter muscles would not relax enough for the stools to come out. Instead I was releasing small amounts of waste and had the desire that I was not empty. In fact I wasnt but I was offered an enema kit which I used every other day and this has helped me to release the waste that has been sitting in my rectum that was contributing to the foul odour from my bottom area.
The doctors were not empathetic to my problem and many had told me for many years tht there was nothing wrong with my bowels. I know my body and knew they, not me, was wrong which was proved correct after the bowel tests.
What symptoms are you having and how have you dealt with it?