Intermediate
Technical
In the Industry Vocabulary Test
Anovulation
The absence of ovulation during a menstrual cycle, preventing natural conception.
Full Definition
Anovulation is a condition where the ovaries fail to release a mature egg during the menstrual cycle. This can result in irregular or absent menstrual periods and is a common cause of female infertility. Anovulation may be caused by hormonal imbalances, polycystic ovary syndrome (PCOS), thyroid disorders, excessive exercise, or stress. Treatment typically involves ovulation induction medications such as clomiphene citrate or gonadotropins. Diagnosis is confirmed through hormonal testing, ovulation predictor kits, or transvaginal ultrasound monitoring.
Usage
Usage note: Distinguish from oligoovulation (infrequent ovulation) and amenorrhea (absence of menstruation).
In Context
- "Chronic anovulation was diagnosed based on consistently low progesterone levels." — Laboratory results
- "Ovulation induction successfully treated the patient's anovulation and restored fertility." — Treatment outcome
Also known as
Ovulatory Dysfunction
Contrasted with
Ovulation
Don't confuse with
Oligoovulation
Amenorrhea