Why does menopause accelerate bone loss in women?

Menopause accelerates bone loss in women primarily due to the significant decline in the production of estrogen and other sex hormones that occurs at the onset of this life stage.123

During a woman's reproductive years, estrogen plays a vital role in maintaining skeletal health by helping to regulate the balance between bone formation and bone resorption (the process by which bone is broken down and assimilated). When estrogen levels drop—often by 80 percent or more during menopause—this protective effect is diminished. The resulting hormonal shift leads to an imbalance where bone resorption outpaces bone formation, causing a period of accelerated bone loss that typically lasts for several years.213

This rapid reduction in bone mass can lead to osteopenia or osteoporosis, conditions that increase the risk of fractures from minor stresses. While this accelerated loss eventually slows, the decline in bone density continues indefinitely as part of the normal aging process.123