The author has analyzed the incidence of bone fractures in women of various age groups, residents of the Cheryomushki District of Moscow in 1988-1989, using the records of the traumatologic service of the district and the census data. The incidence of bone fractures was the highest in women aged over 45 (up to 2.5%), and was the higher the older the woman grew, 2/3 of all the fractures occurred in women aged 45-64. Analysis of the findings has confirmed that the developing postmenopausal osteoporosis, that was not diagnosed in time and therefore not prevented, contributed to the occurrence of bone fractures in women aged 45 to 65. The author emphasizes the necessity of studying osteoporosis incidence in various age groups and the share of this condition in women with fractures, making use of the monophoton absorptiometry.