What are the factors that affect pregnancy?

There are many factors that affect conception, mainly including age factors, reproductive system diseases, endocrine factors, lifestyle, environmental factors, sexual life factors, etc. 1. Age factors With the increase of age, female ovarian function gradually declines, egg quality and quantity will also decrease, and the chance of conception will decrease accordingly; male sperm quality may also be affected to some extent. 2. Reproductive system diseases in women, such as polycystic ovary syndrome, tubal obstruction, endometriosis, etc., will affect egg discharge, fertilization and embryo implantation; male varicocele, vas deferens obstruction, oligospermia and asthenospermia will affect sperm production and transportation. 3. Endocrine factors endocrine disorders will affect the normal function of the reproductive system. For example, thyroid dysfunction may lead to irregular menstruation, ovulation disorders, etc., thus affecting pregnancy. 4. Lifestyle Long-term smoking, alcoholism, excessive staying up late, excessive stress and other bad habits may interfere with endocrine level5. Environmental factors Long-term exposure to harmful environmental factors such as chemicals and radiation may cause damage to germ cells and affect pregnancy and embryo quality.6. Sexual life factors Irregular sexual life and inappropriate contraceptive methods may affect pregnancy. For example, not arranging sex properly during ovulation can reduce the chances of conception. Pregnancy is a complex process, and problems at any one stage can affect the success rate of conception. If pregnancy is not conceived after a period of time, seek medical attention promptly for comprehensive examination and evaluation so that targeted measures can be taken.