Hello and welcome to HCM. Thank you for your query. Unfortunately, in such a situation, a physical examination is the mainstay of diagnosis. Such a presentation, with a fecal-odor could be due to various reasons. Have you had a history of any abscesses in the region? Hemorrhoids? Do you experience a fecal stain? Any spots or leak or stains in your undergarments? Despite of maintaining good hygiene, the presence of such an odor, is a confirmation of some underlying condition. This could be related to a condition related to your anal opening, anal fistula s, abscesses, fecal incontinence, etc. The first thing, is to abstain from sexual contact if you are indeed sexually active? Be careful while cleaning after a bowel movement, move from the vagina to the anus, and not in the opposite direction. It is difficult to provide more accurate advise, as I am unaware about the problem being of the vagina or the anal region. If you could, please try using a mirror to examine for any abnormalities in and around the vagina, the perineum and the anal region. You could write back to me with any such information, and I would be more than happy to help you. I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications at: http://doctor.healthcaremagic.com/doctors/dr-shoaib-khan/64581 . I would gladly help you. Best wishes.