Factors causing osteoporosis 1, thin, thin bones 2, older members of the family, especially women with fractures or hunchbacks 3, whether naturally entering menopause or because of surgical removal of the ovaries, women who enter menopause before the age of 45 will experience premature estrogen deficiency 4, lack of estrogen caused by an absence of menstruation (abnormal condition without menstruation). 5, low calcium content of food 6, lack of exercise lifestyle 7, white women and Asian women have a higher risk of the disease; while African-American and Hispanic women have a lower risk 8, smoking 9, excessive alcohol consumption 10, using certain drugs for too long, these drugs include adrenal glucocorticoids, a range of anti-inflammatory drugs used to treat asthma, arthritis and certain cancers; too much thyroid hormone, use of certain anti-epileptic drugs. In short, osteoporosis is a disease disease of abnormal bone metabolism, the cause of which has not yet been clarified, but the medical community believes that the following factors are related: 1, aging: one of the natural phenomena of human aging. 2, estrogen decline: estrogen will stimulate the formation of bone and inhibit the breakdown of bone. If a woman is removed from the ovaries or menopause, estrogen will stop or p less secretion, it will be invaded once the appropriate umbrella 3, nutritional disorders: calcium intake is insufficient or often eat high-protein, high-salt food or addicted to smoking, alcohol. 4, life is not normal: such as lack of exercise, less sunshine. 5, disease: suffer from kidney disease, liver disease, diabetes, hypertension, hyperthyroidism, rheumatoid arthritis, rigid spondylitis or certain cancers. 6, drugs: L period taking steroids, anti-cancer drugs, diuretics, anticoagulants, stomach drugs or painkillers. 7.Heredity: osteoporosis has a certain heredity