Doctors in Iran have developed a blood test to establish when a woman will hit the menopause.
Dr Fahimeh Ramezani Tehrani will tell the European Society of Human Reproduction and Embryology in Rome today that the test, which could influence a woman’s decision on when to try for a baby, measures the concentrations of a hormone produced by cells in ovaries.
Women hit the menopause at about 52, the study says, although it happens to some women much earlier.