Most experts define infertility as not being able to get pregnant after at least one year of trying. Women who are able to get pregnant but then have repeat miscarriages are also said to be infertile. Pregnancy is the result of a complex chain of events. In order to get pregnant:
Infertility can result from problems that interfere with any of these steps.
It is estimated that 1 in 7 couples in Ireland will experience difficulties with conceiving.
No, infertility is not always a woman's problem. In only about one-third of cases is infertility due to the woman (female factors). In another one third of cases, infertility is due to the man (male factors). The remaining cases are caused by a mixture of male and female factors or by unknown factors.
Infertility in men is most often caused by:
Sometimes a man is born with the problems that affect his sperm. Other times problems start later in life due to illness or injury. For example, cystic fibrosis often causes infertility in men.
The number and quality of a man's sperm can be affected by his overall health and lifestyle. Some things that may reduce sperm number and/or quality include:
Problems with ovulation account for most cases of infertility in women. Without ovulation, there are no eggs to be fertilized. Some signs that a woman is not ovulating normally include irregular or absent menstrual periods.
Less common causes of fertility problems include:
Many things can affect a woman's ability to have a baby. These include:
More and more women are waiting until their 30's and 40's to have children. About 20 to 30 percent of women in Ireland now have their first child after age 35. So age is an increasingly common cause of fertility problems. About one third of couples in which the woman is over 35 have fertility problems.
Ageing decreases a woman's chances of having a baby in the following ways:
Most healthy women under the age of 30 should not worry about infertility unless they have been trying to get pregnant for at least a year. At this point, women should talk to their doctor about a fertility evaluation. Men should also talk to their doctor if this much time has passed.
In some cases, women should talk to their doctor sooner. Women over 35 years if age who have been trying to get pregnant for six months should speak to their doctor as soon as possible. A woman's chances of having a baby decreases every year after the age of 35. Therefore getting a complete and timely fertility evaluation is especially important.
Some health issues also increase the risk of fertility problems. Women with the following issues should speak to their doctors as soon as possible:
No matter how old you are, it is always a good idea to talk to your doctor before you start trying to get pregnant. Your doctor can help you prepare your body for a healthy baby. They can also answer questions on fertility and give tips on conception.
Sometimes doctors can find the cause of a couple's infertility by doing a complete fertility evaluation. This process usually begins with physical examinations and health and sexual histories. If there are no obvious problems, like poorly timed intercourse or absence of ovulation, tests will be needed.
Finding the cause of infertility is often a long, complex and emotional process. It can take months for you and your doctor to complete all the needed examinations and tests. Therefore do not be alarmed if the problem is not found immediately.
For a man, doctors usually begin by testing his semen. They look at the number, shape, and movement of the sperm.
For a woman, the first step in testing is to find out if she is ovulating each month. There are several ways to do this. A woman can track her ovulation at home by:
Doctors can also check if a woman is ovulating by doing blood tests and an ultrasound of the ovaries. If the woman is ovulating normally, more tests will be needed.
Some common tests of fertility in women include:
Infertility can be treated with medicine, surgery, artificial insemination or assisted reproductive technology. Many times these treatments are combined. About two-thirds of couples who are treated for infertility are able to have a baby. In most cases infertility is treated with drugs or surgery.
Doctors recommend specific treatments for infertility based on:
Doctors often treat infertility in men in the following ways:
Various fertility medicines are often used to treat women with ovulation problems. It is important to talk with your doctor about the pros and cons of these medicines. You should understand the risks, benefits, and side effects.
Doctors also use surgery to treat some causes of infertility. Problems with a woman's ovaries, fallopian tubes, or uterus can sometimes be corrected with surgery.
Intrauterine insemination (IUI) is another type of treatment for infertility. IUI is known by most people as artificial insemination. In this procedure, the woman is injected with specially prepared sperm. Sometimes the woman is also treated with medicines that stimulate ovulation before IUI.
IUI is often used to treat:
Some common medicines used to treat infertility in women include:
Many fertility drugs increase a woman's chance of having twins, triplets or other multiples. Women who are pregnant with multiple fetuses have more problems during pregnancy. Multiple fetuses have a high risk of being born too early (prematurely). Premature babies are at a higher risk of health and developmental problems.
Assisted reproductive technology (ART) is a term that describes several different methods used to help infertile couples. ART involves removing eggs from a woman's body, mixing them with sperm in the laboratory and putting the embryos back into a woman's body.In Vitro Fertilisation (IVF) is the most commonly known type of ART.
Success rates vary and depend on many factors. Some things that affect the success rate of ART include:
There has been a steady improvement in the success rates of IVF treatment since its introduction in 1978. The pregnancy rates vary between IVF clinics, and from time to time within the same clinic. The overall live birth rate per treatment cycle is between 20% and 25%. There are many factors that may affect success rates.
The chance for an individual couple of having a baby following one completed cycle of IVF treatment depends on two main factors. Firstly, the overall success rate of the treatment clinic (centre) and secondly, the characteristics of the couple seeking treatment.
ART can be expensive and time-consuming. But it has allowed many couples to have children that otherwise would not have been conceived. The most common complication of ART is multiple fetuses. But this is a problem that can be prevented or minimized in several different ways.
Common methods of ART include:
ART procedures sometimes involve the use of donor eggs (eggs from another woman), donor sperm, or previously frozen embryos. Donor eggs are sometimes used for women who can not produce eggs. Also, donor eggs or donor sperm is sometimes used when the woman or man has a genetic disease that can be passed on to the baby.