The happiest thing for every woman is to be a mother, but now the prevalence of infertility is increasing, what problems in daily life can lead to infertility? Which female population is prone to infertility? 1.Smoking, drinking, lack of sleep, irregular diet. The toxicity of cigarettes can directly affect the eggs, causing women to enter menopause early. Long-term smoking will harm the entire hormone system of the body and affect the function of the ovaries. Drinking, lack of sleep and irregular diet will bring serious negative impact on women’s reproductive health, leading to a decline in both egg quality and fertility. 2. Those who have sex during menstruation. Sex during menstruation can stimulate the uterus to contract violently, causing menstrual blood to flow back into the pelvis, resulting in endometriosis leading to infertility. Sex during menstruation is also prone to genital infections causing salpingitis, pelvic inflammatory disease, endometritis leading to infertility. Genital inflammation, endometriosis stimulates the body to produce anti-sperm antibodies, anti-endometrial antibodies and so on leading to infertility. 3.Artificial abortion. After abortion, the pregnancy is suddenly interrupted, and the hormone level in the body suddenly drops, thus affecting the survival of the egg’s internal environment and affecting the quality and vitality of the egg. The mechanical damage or postoperative infection of abortion can also lead to uterine adhesions and tubal problems, anti-endometrial antibodies, anti-sperm antibodies thus causing infertility. 4.Age over 35 years old. The number of follicles in a woman’s life only decreases, and the number of germ cells is the highest when the fetus is 6 months old, about 7 million, and only 1 million survive after birth. Eggs stay with a woman throughout her life, and factors such as lifestyle, environment, and age can affect the quality of her eggs. In terms of women’s physiological pattern, women’s fertility is strongest at the age of 25, slowly decreasing after the age of 30, and rapidly decreasing after the age of 35 to half of what it was at the age of 25. Fertility at the age of 38 is 25% of what it was at the age of 25, and decreases to less than 5% after the age of 40. 5. People with sexually transmitted diseases. Sexually transmitted diseases can mostly lead to pelvic inflammatory diseases, and inflammation of the reproductive system destroys the function of the female fallopian tubes leading to infertility. It can also cause abnormal cervical secretions and vaginal secretions, so that sperm cannot enter the fallopian tube through the cervix leading to infertility. When the reproductive system is inflamed, antigenic materials in the semen can stimulate the female organism to produce anti-sperm antibodies affecting conception. If women find reproductive health problems, they should go to regular hospitals to receive treatment in time, which can prevent more harm from happening. Do more exercise, eat healthy, and work hard to have a healthy and lovely baby!