Egg Reserve, Quality & Age

What affects egg quality

What affects egg quality

Age and ovarian biology Chronological age is the most established factor affecting oocyte quality. As ovarian aging progresses, the chance of meiotic errors rises, which means the egg is more likely to carry an abnormal number of chromosomes. That matters because chromosomal abnormalities in eggs are a major reason embryos fail to implant or miscarry […]

Signs of low egg reserve

Signs of low egg reserve

Why the signs are easy to miss Most people with diminished ovarian reserve have no day-to-day symptoms. The ovaries can have fewer remaining eggs than expected without causing pain, obvious hormone symptoms, or a dramatic change in how someone feels. That is why the first sign is often not something you notice in the body […]

How ovarian reserve declines with age

How ovarian reserve declines with age

The biology of ovarian reserve The ovary contains a fixed pool of non-growing follicles that is established before birth. From that point forward, follicles are lost through normal biologic processes, including atresia, so the number of available follicles steadily falls across childhood, adolescence, reproductive life, and ultimately menopause. In other words, the ovary does not […]

Age and female fertility decline

Age and female fertility decline

Why female fertility is strongly age-dependent Unlike sperm production, which continues throughout adult life, the female ovarian reserve is established before birth and declines continuously. During fetal life, the ovaries contain millions of germ cells. By birth, the number is substantially lower; by puberty, only a fraction remains. Through each menstrual cycle, a cohort of […]

Age-related egg quality decline

Age-related egg quality decline

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, egg quality influences the chance of conception, embryo development, implantation, and ongoing pregnancy. The most […]

Egg quality and fertility

Egg quality and fertility

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 not simply about whether ovulation occurs. A person may ovulate regularly and still have eggs […]

Low ovarian reserve explained

Low ovarian reserve explained

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, and the decline accelerates as reproductive age advances. Low ovarian reserve means the number of […]

Ovarian reserve and fertility

Ovarian reserve and fertility

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 steadily from fetal life onward through a natural process called atresia. By reproductive age, only […]