Nope, infertility is not only about you: about one-third of all infertility cases treated in the United States are caused by a male problem. Varicocele is one of them, and it’s when the veins that drain the testicle become enlarged, similar to the varicose veins you get in your leg. It may cause the scrotum to swell or form a weird, twisted mass on the surface (kind of like a small bag of worms). The condition may decrease the quality of sperm, as well as how much is produced—thus impacting fertility. The good news: varicocele can be surgically repaired, which may improve sperm numbers and function or cure the infertility.
Risk of ovarian hyperstimulation syndrome (OHSS). OHSS can happen when women respond too well to fertility drugs and produce too many eggs. About 10 to 20 percent of women who take gonadotropins develop a mild form of OHSS, a condition marked by weight gain and a full, bloated feeling. Some also have shortness of breath, dizziness, pelvic pain, nausea, and vomiting. If you have OHSS, your ovaries swell to several times the normal size and produce fluid that accumulates in your abdominal cavity. Normally this resolves itself with careful monitoring by a physician and bed rest. But in rare cases it's life threatening, and you may have to be hospitalized for more intensive monitoring or treatment.
A closer look at the data suggest that the benefit of letrozole over clomid depended on the BMI of the participants. For patients with a BMI of less than 30 kg/m2, the cumulative live birth rate was approximately 30% for each group. However, for patients with a BMI over 30 kg/m2, twice as many patients had a live birth in the letrozole group than the clomid group.
Limited long-term follow-up data suggest that IVF may be associated with an increased incidence of hypertension, impaired fasting glucose, increase in total body fat composition, advancement of bone age, subclinical thyroid disorder, early adulthood clinical depression and binge drinking in the offspring.[53][55] It is not known, however, whether these potential associations are caused by the IVF procedure in itself, by adverse obstetric outcomes associated with IVF, by the genetic origin of the children or by yet unknown IVF-associated causes.[53][55] Increases in embryo manipulation during IVF result in more deviant fetal growth curves, but birth weight does not seem to be a reliable marker of fetal stress.[56]
In humans, infertility is the inability to become pregnant after one year of intercourse without contraception involving a male and female partner.[2] There are many causes of infertility, including some that medical intervention can treat.[3] Estimates from 1997 suggest that worldwide about five percent of all heterosexual couples have an unresolved problem with infertility. Many more couples, however, experience involuntary childlessness for at least one year: estimates range from 12% to 28%.[4] Male infertility is responsible for 20–30% of infertility cases, while 20–35% are due to female infertility, and 25–40% are due to combined problems in both parts.[2][5] In 10–20% of cases, no cause is found.[5] The most common cause of female infertility is ovulatory problems, which generally manifest themselves by sparse or absent menstrual periods.[6] Male infertility is most commonly due to deficiencies in the semen, and semen quality is used as a surrogate measure of male fecundity.[7]
Many people of sub-Saharan Africa choose to foster their children to infertile women. IVF enables these infertile women to have their own children, which imposes new ideals to a culture in which fostering children is seen as both natural and culturally important. Many infertile women are able to earn more respect in their society by taking care of the children of other mothers, and this may be lost if they choose to use IVF instead. As IVF is seen as unnatural, it may even hinder their societal position as opposed to making them equal with fertile women. It is also economically advantageous for infertile women to raise foster children as it gives these children greater ability to access resources that are important for their development and also aids the development of their society at large. If IVF becomes more popular without the birth rate decreasing, there could be more large family homes with fewer options to send their newborn children. This could result in an increase of orphaned children and/or a decrease in resources for the children of large families. This would ultimately stifle the children's and the community's growth.[134]
"Demographers tend to define infertility as childlessness in a population of women of reproductive age," whereas "the epidemiological definition refers to "trying for" or "time to" a pregnancy, generally in a population of women exposed to" a probability of conception.[8] Currently, female fertility normally peaks at age 24 and diminishes after 30, with pregnancy occurring rarely after age 50.[9] A female is most fertile within 24 hours of ovulation.[9] Male fertility peaks usually at age 25 and declines after age 40.[9] The time needed to pass (during which the couple tries to conceive) for that couple to be diagnosed with infertility differs between different jurisdictions. Existing definitions of infertility lack uniformity, rendering comparisons in prevalence between countries or over time problematic. Therefore, data estimating the prevalence of infertility cited by various sources differs significantly.[8] A couple that tries unsuccessfully to have a child after a certain period of time (often a short period, but definitions vary) is sometimes said to be subfertile, meaning less fertile than a typical couple. Both infertility and subfertility are defined as the inability to conceive after a certain period of time (the length of which vary), so often the two terms overlap.
Stay positive. Search for success stories — there are so many out there. Look within your personal network or support groups to find other women who have similar experiences with infertility. Connect with them and share your stories. Learn what they have done, what doctors they have worked with, and what contributed to their successful pregnancies.

The live birth rate is the percentage of all IVF cycles that lead to a live birth. This rate does not include miscarriage or stillbirth; multiple-order births, such as twins and triplets, are counted as one pregnancy. A 2017 summary compiled by the Society for Assisted Reproductive Technology (SART) which reports the average IVF success rates in the United States per age group using non-donor eggs compiled the following data:[10]

Any embryos that you do not use in your first IVF attempt can be frozen for later use. This will save you money if you undergo IVF a second or third time. If you do not want your leftover embryos, you may donate them to another infertile couple, or you and your partner can ask the clinic to destroy the embryos. Both you and your partner must agree before the clinic will destroy or donate your embryos.

There is no one-size-fits-all solution to infertility, and the path you take will be unique to your specific case, but there are some common starting points. Intrauterine insemination (IUI) and in vitro fertilization (IVF) are two of the most popular infertility treatments available today. Understanding what they are, who they are intended for, and what the success rates are for these two options will give you a place to begin your conversations with your fertility expert. Here’s what you need to know.
After your body releases an egg, the hormone progesterone kicks in to build and maintain the lining of the uterus. It makes your body temperature go up slightly. So taking your temperature with a basal thermometer every morning before you get out of bed can help you figure out if you ovulated. You can buy these thermometers at the drugstore. They're inexpensive, but they aren't as accurate as other ways of tracking ovulation.
During an infertility workup, you and your partner will be asked questions about your current health and medical history. "We're looking to see what might have changed from previous pregnancies," says Dr. Tan. "If we find something we can fix—say, removing scar tissue—we'll start there." Also expect blood work and ultrasounds to determine whether you're ovulating and to check your egg supply, an X-ray to look for blocked fallopian tubes, and a semen analysis to measure sperm count and quality.
Ovulation induction with IUI: The goal with ovulation induction is to recruit and develop a single egg during the stimulation phase. At the time of ovulation, insemination occurs, placing the sperm directly into the uterus. IUI puts the sperm closer to the egg than possible with intercourse alone. You will come into the office for three to five monitoring appointments to track egg development and cycle timing.

Our team here at the Center for Human Reproduction has recently developed an infographic explaining one of the most common causes of female infertility: unexplained infertility. This diagnosis is given to 30% of infertility cases and yet, we believe it really is a non-diagnosis. In our clinical experience, with proper testing, up to 90% of unexplained infertility diagnoses can be attributed to treatable causes.

Only 30 percent of patients who receive 100 mg of Clomiphene a day will produce more than three follicles. Patients that produce less than than three follicles have about half the chance of getting pregnant than those that produce greater than three follicles. Patients that receive fertility medications but do not do an insemination have only half the success rates compared to those who do.