Clear breast cancer morbidity high-risk factor

Breast cancer is one kind of severely impair feminine physical and moral integrity common malignant tumor,not only endangers the patient life,moreover creates the feminine sexual character organ the damage. From 20th century at the end of 70's starts,breast cancer disease incidence rate is situated the feminine tumor continuously in the global scope the first place,and every year by 2% speed increasing. In our country Shanghai,beijing,tianjin and so on big city,breast cancer has occupied the woman malignant tumor the first place. The Shanghai Nampo Gynecology department expert introduced said,the breast cancer morbidity accurate reason at present still not clear,cannot use the single factor to explain breast cancer occurrence and the development,thought generally breast cancer the occurrence concerns with following factor.

One,menstruation first menstruation early menopause evening. The menstruation first menstruation age is smaller than 12 years old with to be bigger than 17 years old to compare,the mammary gland carcinogenesis relative danger increases 2.2 times. The menopause age is bigger than 55 year old of ratio to be smaller than 45 years old to have breast cancer risk to increase 1 time. Menstruation first menstruation morning,the menopause late is the breast cancer most primary two dangerous factors.

Two,heredity factor. Some research discovery,his/her mother the woman who once contracts the two-sided breast cancer in front of the menopause,oneself contracts breast cancer the risk for common woman's 9 times,moreover the breast cancer patient's second generation appears breast cancer the average age to shift to an earlier time approximately compared to the average person about for 10 years. In the middle of the sisters has the trouble breast cancer female,the risk is average man's 3 times. Needs to emphasize is,breast cancer is not the direct heredity,but is one kind of " cancer quality " heredity,breast cancer patient's relative certainly contracts breast cancer by no means,only is contracts breast cancer the average person the possibility to have to be bigger than.

Three,the marriage nurtures. The epidemiology research indicated,although but the female will marry sterile or the first embryo in 30 year old of later also is the disadvantage factor,but unmarried has the breast cancer danger for marriage 2 times. The expert thought,the birth has the protective function to the mammary gland,but only referred in 30 year old of before had full-term producing. The recent years research thought,nursing has the protective function to breast cancer occurrence,mainly is to in front of the menopause woman.

Four,ionisation radiation. The mammary gland is to the ionisation radiation carcinogenicity activeness sensitive organization. Young when for mammary gland mitosis operational phase,is most sensitive to the ionisation radiation carcinogenicity effect,but the ionisation radiation effect bothers additive,many times the small dosage exposition and a large dose exposition degree of hazard is same,has the dosage - effect relations. Time in Japanese Nagasaki nuclear detonation survivor,contracts breast cancer the proportion obvious increase,the child and the young people time has accepted the chest radiotherapy,the coarsening future trouble breast cancer opportunity also increases.

Five,ill Health diet custom. Breast cancer disease incidence rate and the mortality rate and the average per person digestion fat quantity has the strong relations. Some company officer high income creates the high level of living,forms not not scientifically,ill health " high quantity of heat,high fat " diet custom,the result causes breast cancer the disease incidence rate to enhance greatly.

Six,ill health life style. Some is engaged in the office work for a long time the feminine white-collar sits moves few,lacks the exercise,the contact sunlight are few. Majority professional females as a result of functional relationship,the long time is bind rounding the bra tightly,rarely deregulates " for mammary gland "; Also has a professional female under the work pressure or the pursue enterprise success,unmarried aristocrat or the Ding gram springs up in a throng lives,does not get married,does not want the child. These factors all concern with mastopathy.

Seven,spirit despondent and hypertension. According to investigation,disposition introversion,spirit long-term despondent,the early life is unhappy,is causes cancer the important attribute. Metropolis young female faced with keen competition pressure,the spirit is at the stress tense condition for a long time,causes in the mood not to be unstable,uneven sum. These energetic factors with live the working to put together not good to the breast cause the further damage.

Eight,hormone. Breast cancer and the human body internal secretion balance detuning has the relations,in each kind of endocrine factor,most importantly estrogen,progestogen. The findings indicated,estrogen stimulation breast gland epithelial cell excessively proliferation,is creates the breast cancer the important reason,often uses the hormone thing and the woman menopause hormone substitution treatment may increase breast cancer the morbidity danger.

Nine,medicine. Some medicine like blood pressure medicine reserpine,fen sai zuo and so on and the steroid body class medicine has the increase breast cancer prevalence rate function. Some healthy products,skin appliances,in the cosmetics includes the carcinogenic ingredient,also must be specially prudent in the use. Moreover,in air harmful ingredient,vegetables,on fruit's residual agricultural chemicals and so on,all has the varying degree carcinogenic ingredient.

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