London: Actress-model Elizabeth Hurley says she fears the worst at her annual mammogram and "sobs with relief" when doctors give her the all-clear.

The 'Bedazzled' star has been a longtime campaigner for breast cancer awareness after losing her grandmother to the disease and travels the world to urge women to get screened, according to reports.

 But Hurley, 46, admits she turns into a nervous wreck every year when it's her turn to visit the doctor for a mammogram.

 "For 364 days of the year I can speak and think rationally about breast cancer... But on day 365, I'm in a panic. For on day 365, I get my annual mammogram and, in between the procedure and waiting for the nurse to come back with the result, I get really, really scared.

"In the 20 minutes or so that it takes for the doctor to study the images, my imagination takes me to dark and frightening places and I generally wind myself up into a frenzy. Everything bad flashes through my mind and invariably I end up seeing my little orphaned son crying at my funeral, his mother having lost her fight against breast cancer...," she posted on her blog.

(Agencies)