The causes of ovulation disorders are actually more, such as polycystic ovary syndrome, hyperprolactinemia, premature ovarian failure, etc., roughly as follows:1, polycystic ovary syndrome: this is when the androgen is too high in the body of the woman, which will inhibit normal ovulation, resulting in the ovary only small follicle growth and development, but no mature follicle discharged. This will lead to menstrual disorders, may cause amenorrhea, but also because of ovulation disorders, and can not get pregnant; 2, hyperprolactinemia: this time the female prolactin is too high, hyperprolactinemia, will inhibit ovarian ovulation, so it will cause ovulation disorders; 3, premature ovarian failure: it may be the woman’s ovary function premature failure, and cause ovulation disorders.