Skip to main content

When Does Fertility Decline?

|

It’s not uncommon for people to delay having children until their 30s or 40s, often because of focusing on a career or not being ready to settle down. If you’ve chose to delay having children, you may not give much thought to the aging process and how it may be affecting your fertility. You may believe you have plenty of time, especially when you see celebrities having children in their late 40s and sometimes even later. Having a child later in life sometimes requires the help of fertility experts, and the older you are, the more likely that you may need treatment for infertility. When does fertility decline? 

Fertility Decline in Women

Women are born with a set number of eggs. Fertility peaks in the late teens and 20s, which is a time many women aren’t ready to consider children for emotional or financial reasons. Fertility, which is the ability to get pregnant, has started a slow decline by age 30. By the mid to late 30s, fertility is declining rapidly. 

Women who try to get pregnant in their mid-30s or 40s may find it’s not as easy as they expected and many women need the help of fertility professionals to conceive, especially if it’s after the age of 35. There’s a decline in egg count and egg quality as women age. The risk of miscarriage or chromosomal abnormalities also increases with age. Because of this decline, women who think they may want to get pregnant later in life may wish to consider freezing their eggs when they’re between 27 and 34.

Fertility Decline in Men

Aging can also be a factor in male fertility. The peak of a man’s fertility is in his mid to late 20s. By age 30, sperm quality is beginning to decline. There’s a significant decrease in semen volume by the age of 45. The aging process in men also affects testosterone levels.

As the levels of this important hormone decline, both sperm quality and sexual function may be impacted. Sperm motility may also be affected, making it more difficult for sperm to successfully reach the egg. Declining sperm quality increases the risk of genetic diseases.

Other Factors That Can Affect Fertility

Age isn’t the only factor that can cause a decline in fertility. Poor lifestyle choices such as smoking, drinking heavily and leading a sedentary lifestyle can all have an impact on fertility. Your fertility may also be impacted if you struggle with obesity.

Getting pregnant late in life increases the risk of complications for the mother and the risk of miscarriage or stillbirth. Both women and men should keep their decline in fertility in mind if they choose to postpone having children.

The Center for Reproductive Health can help you learn what you can do to be proactive about your reproductive health. The team is available to help if you have questions about freezing eggs or sperm or about the treatment options that are available if you’re trying to get pregnant. Schedule an appointment for a consultation today.

Eliran Mor, MD

Reproductive Endocrinologist located in Encino, Santa Monica, Valencia & West Hollywood, CA
Reproductive Endocrinologist located in Encino, Valencia & West Hollywood, CA Doctor Mor received his medical degree from Tel Aviv University-Sackler School of Medicine in Israel. He completed a four-year residency in Obstetrics and Gynecology at New York Methodist Hospital in Brooklyn, New York. Subsequently, Dr. Mor completed a three-year fellowship in Reproductive Endocrinology and Infertility […]

FAQ

What does a reproductive endocrinologist and infertility specialist do?

Reproductive endocrinology and Infertility is a sub-specialty of Obstetrics and Gynecology. In addition to managing medical and surgical treatment of disorders of the female reproductive tract, reproductive endocrinologist and infertility (REI) specialists undergo additional years of training to provide fertility treatments using assisted reproductive technology (ART) such as in vitro fertilization.

Reproductive endocrinologists receive board certification by the American Board of Obstetrics and Gynecology in both Obstetrics and Gynecology and Reproductive Endocrinology and Infertility.

When should I see an REI specialist?

In general, patients should consider consulting with an REI specialist after one year of trying unsuccessfully to achieve pregnancy. The chance of conceiving every month is around 20%, therefore after a full year of trying approximately 15% of couples will still not have achieved a pregnancy.

However, if a woman is over the age of 35 it would be reasonable to see a fertility specialist earlier, typically after 6 months of trying.

Other candidates to seek earlier treatment are women who have irregular menses, endometriosis, fibroids, polycystic ovary syndrome (PCOS), women who have had 2 or more miscarriages, or problems with the fallopian tubes (prior ectopic pregnancy).

What are the reasons we are having trouble conceiving?

Approximately 1/3 of the time cause for infertility is a female factor, 1/3 of the time a male factor, and the remaining 1/3 a couples’ factor.

At CCRH, we emphasize the importance of establishing a correct diagnosis. Both partners undergo a comprehensive evaluation including a medical history and physical exam.

Furthremore, the woman’s ovarian reserve is assessed with a pelvic ultrasound and a hormonal profile. A hysterosalpingogram (HSG) will confirm fallopian tube patency and the uterine cavity is free of intracavitary lesions. A semen analysis is also obtained to evaluate for concentration, motility, and morphology of the sperm.

Additional work up is then individualized to direct the best possible treatment option for each couple.

What is IVF? What is the process like?

In vitro fertilization (IVF) is the process that involves fertilization of an egg outside of a woman’s body.

The process starts with fertility drugs prescribed to help stimulate egg development. In your natural cycle, your body is only able to grow one dominant egg, but with stimulation medication we can recruit multiple eggs to continue to grow. After about 8-10 days of stimulation, the eggs are surgically retrieved and then fertilized with sperm in a specialized laboratory. Fertilized eggs are then cultured under a strictly controlled environment within specialized incubators in the IVF laboratory for 3-5 days while they develop as embryos. Finally, embryos (or an embryo) are transferred into the uterine cavity for implantation.

Should I have IVF?

Before deciding if IVF is the right choice, it’s important to sit down with an REI specialist to discuss available treatment options. For some people, other methods such as fertility drugs, intrauterine insemination (IUI) may be the best first choice treatment. At CCRH, we believe each individual couple is unique and not everyone needs IVF.

Is the IVF procedure painful?

While not painful, the fertility medications may some side effects including headaches, hot flashes, mood swings, and bloating. The injection sites may also bruise.

Will IVF guarantee a baby?

Unfortunately, no. Many people think once they start IVF it’s a matter of time that they will be pregnant and have a baby. But according to national statistics per the Society of Assisted Reproduction (SART), on average 40% of assisted reproduction cycles achieve live births in women under age 35. The chances of success then continue to decrease with advancing age.

At CCRH, we employ only evidence-based interventions to ensure patient safety and optimal outcome. While we cannot guarantee a baby, we guarantee that you will receive the best, most advanced, personalized care to help you maximize your chance of a baby.

What is the success rate for IVF?

The average IVF success rate (success measured in live birth rate) using one’s own eggs begins to drop around age 35 and then rapidly after age 40. This is due to the decline in egg quantity and egg quality as a woman ages.

Our clinic’s success rate consistently beats the national average year after year.

Do insurance plans cover infertility treatment? How much does IVF cost?

Individual insurance plans often do not have any coverage for infertility treatments. If you have a group plan, you can call members services to see if they have coverage for infertility (including consultation/workup and IVF).

After your consultation with our REI specialist, one of our dedicated account managers with sit with you to go over the cost of treatment.