Busy work, fierce competition in the workplace, so you even annual leave are often given up, so the arrival of the little baby, but also be delayed again and again, always placed in your agenda outside. Thus wasted to people over thirty, you and your husband’s career are stabilized, you finally began to think about having a child, but the stomach, but there has been no “movement”. What is the reason for this? Factors that prevent conception can be on the woman’s side, the man’s side, or both sexes, with the woman’s side accounting for 60% of the cases. The factors that cause female infertility are as follows: 1 . Ovulation disorder: caused by excessive mental stress, systemic diseases such as hyperthyroidism, polycystic ovary syndrome, hyperprolactinemia, hyperandrogenemia, ovarian failure and so on. 2, tubal incompatibility or dysfunction: often caused by chronic inflammation of the fallopian tube, tuberculosis or endometriosis, tubal ligation. 3, uterine factors: endometritis, endometrial polyps, endometrial tuberculosis, uterine adhesions, uterine submucosal fibroids and so on affect the fertilization of eggs. 4, cervical factors: chronic cervicitis, cervical polyps, uterine stenosis. 5, vaginal factors: vulvovaginal development abnormalities, vulvovaginal inflammation and vulvovaginal scarring can cause infertility. So, how are these factors that prevent conception caused? Women should pay attention to them! We live in some bad habits or environmental factors may be caused by your “pregnancy” decline in the triggers: 1, mental depression customers, boss accusations, elders pressure …… any one of these things are enough to cause you distress, resulting in mental depression. Excessive mental tension and anxiety can have an effect on the lower thalamus – pituitary – ovarian axis, thus inhibiting ovulation. 2, poor diet Socially, partying, staying up late, all kinds of irregular habits make your eating habits are just as irregular, high-fat food to make weight, will cause women’s menstrual disorders, poor ovulation. And unbalanced nutrition will cause the body’s pH imbalance, the loss of the environment suitable for the survival of sperm, resulting in failure to fertilize. 3, long-term sedentary sedentary lead to menstrual blood reflux into the fallopian tubes, ovaries, causing lower abdominal pain, lumbago, especially with severe dysmenorrhea, and over time the formation of endometriosis, ovarian chocolate cysts. Endometriosis is caused by some endometrial cells leaving the brigade and starting to act individually, moving to other organs or tissues such as the ovaries and pelvis, and planting and growing. These endometrium with roots elsewhere grow, change and bleed week after week just like normal endometrium, causing pelvic pain during menstruation, extensive pelvic adhesions and tubal incompatibility. If the ectopic endometrium grows in the ovary, it will form a cyst, which not only causes pain, but also affects the endocrine function of the ovary. 4, long-term smoking burning cigarettes can release a chemical called polycyclic aromatic hydrocarbons (PAH), PAH and aromatic hydrocarbon receptor (Ahr) on the egg cell combined together, inducing the Bax gene is activated, this activated gene contains a protein, which can destroy the cell’s energy reservoir, leading to a lack of energy, and ultimately, the death of egg cells. 5. Improper contraception Whether it’s your busy schedule or financial reasons, you’ve been thinking that you’re not well-equipped to accept the arrival of your little BABY, so chances are you’ve been taking oral contraceptives to prevent pregnancy. However, long-term use of oral contraceptives so that a woman’s body always has too high levels of estrogen, and this level is not broken because of pregnancy and breastfeeding, so it becomes a fertile ground for infertility. 6, excessive weight loss Almost no woman has never carried out any weight loss activities, who let the “beauty of the ribs” has been the representative of fashion it! The enthusiasm to lose weight women pay attention to it! U.S. scientists after 15 years of collecting evidence that women have a normal menstrual cycle because of the maintenance of the fat minimum, so as to have the ability to reproduce. In adult women, excessive fat loss can unknowingly cause the cessation of ovulation or symptomatic amenorrhea. If any of the above causes of infertility are relevant to you and you have been unable to conceive for two years after giving up contraception, it is time to consider going to the hospital for a thorough check-up.