What anovulation means In a typical ovulatory menstrual cycle, coordinated signals from the hypothalamus, pituitary gland, ovaries, and uterus lead to follicle development, a mid-cycle luteinizing hormone surge, egg release, progesterone production after ovulation, and then either pregnancy or menstrual…

What counts as an irregular menstrual cycle? A menstrual cycle is counted from the first day of one period to the first day of the next. Many adults have cycles somewhere around 24 to 38 days, but “normal” is not…

What egg quality means Egg quality describes the developmental competence of an oocyte. A high-quality egg is more likely to mature properly, complete meiosis with the correct chromosome number, be fertilized, and support early embryonic cell division. In practical terms,…

What clinicians mean by egg quality Egg quality, or oocyte competence, describes whether an egg has the cellular and genetic capacity to complete maturation, be fertilized, divide normally as an embryo, implant, and contribute to an ongoing pregnancy. It is…

What does low ovarian reserve mean? Ovarian reserve refers to the remaining supply of oocytes, or eggs, within the ovaries. Everyone with ovaries is born with a finite number of immature eggs. This number declines throughout life, including before puberty,…

What ovarian reserve means Ovarian reserve describes the remaining pool of eggs in the ovaries and the functional activity of the follicles that contain them. A person is born with all the oocytes they will ever have. The number declines…

Why the fallopian tubes matter for conception The fallopian tubes are not passive pipes. They are highly specialized reproductive organs that coordinate egg pickup, sperm transport, fertilization, early embryo support, and embryo movement into the uterus. After ovulation, the fimbriae,…

Endometriosis and fertility: a variable relationship Endometriosis-associated infertility is not a single pathway. It is better understood as a spectrum of possible disruptions that may occur at several points in conception: ovarian follicle development, ovulation, egg pickup by the fallopian…

Understanding endometriosis in the context of fertility Endometriosis is estrogen-responsive and inflammatory. The ectopic endometrial-like lesions can bleed, scar, and trigger immune activity, leading to pelvic adhesions and distorted anatomy. When adhesions tether the ovaries, fallopian tubes, uterus, or bowel,…

PCOS and ovulation: the core connection Ovulation is the release of a mature egg from the ovary. In a typical menstrual cycle, several ovarian follicles begin to grow under the influence of follicle-stimulating hormone, or FSH. Usually, one follicle becomes…