Hello and welcome, First of all please do not worry. The common cause of post coital bleeding in menopausal women is atrophic vaginitis. It occurs due to estrogen deficiency and hence the vaginal lining becomes thin and can bleed on minor trauma. Other reasons are cervical causes like erosions and polyps and very rarely cervical cancer. So you must see you doctor and get an examination. In most cases it is due to atrophic vaginitis and estrogen creams help in cure. Hope this satisfies your query. Thanks for using HCM. Feel free to ask any more questions that you may have. Dr Madhuri Bagde Consultant Obstetrician and Gynecologist