I am 10 days post op after having both ovaries removed. I had my uterus removed in 2001, and am aged 46. I am just wondering how long after surgery would I notice the effects of menopause????? At this point I am starting to believe that maybe my ovaries weren't even working before surgery, due to various problems in the last 6 months. So far, TOUCH WOOD, I don't think I am having any symptoms of menopause post surgery, and would be very interested if I am to go through instant menopause, how long before I noticed any changes. Fingers crossed, that all the mood swings, and feeling the heat badly over the last few years, was my actual menopause. One of my ovaries was black, twisted and necrotic, and the other one was full of cysts on removal. Love to hear others experiences regarding menopause after surgery. I have also given up smoking for the past two weeks, and intend to stay smoke free. People keep saying that I look the best I have for years, and I've also managed to lose about 4-5 kilos in the last fortnight, so things are really looking good at this stage