Infertility

What is infertility?

Infertility is a condition of the reproductive system in which a couple is unable to achieve a pregnancy after regular, unprotected sexual intercourse for a defined period. Doctors most often use twelve months as the cutoff for couples in which the woman is under 35 years old, and six months for couples in which the woman is 35 or older, because fertility naturally declines with age. Infertility can affect anyone of reproductive age and is recognized by the World Health Organization as a disease of the reproductive system, not a personal failing.

Infertility is a shared concern. It may be related to the female partner, the male partner, both partners, or no identifiable cause at all. Doctors sometimes distinguish between primary infertility, in which a person has never achieved a pregnancy, and secondary infertility, in which a person has had at least one pregnancy in the past but is now unable to conceive again. Both forms are common and both can be evaluated and, in many cases, treated.

Understanding what infertility is helps set realistic expectations. Not conceiving within a few months is not unusual and is usually not a sign of a problem. A formal evaluation is generally suggested only after the time frames above have passed, or earlier when known risk factors are present.

Infertility symptoms

The main sign of infertility is straightforward: not becoming pregnant despite regular attempts over the recommended period. Many people with infertility have no other noticeable symptoms and feel entirely healthy. However, some underlying conditions that contribute to infertility do produce symptoms, and these may differ depending on whether the issue relates to the female or male partner.

Possible infertility symptoms in women may include:

• Irregular menstrual cycles, or cycles that are unusually short or long
• Absent periods (called amenorrhea) or very light periods
• Very painful or heavy periods
• Pain during sexual intercourse
• Unusual hair growth on the face, chest, or back, which can indicate a hormone imbalance
• Acne that persists into adulthood
• Milky discharge from the breasts when not breastfeeding
• A history of two or more miscarriages

Possible infertility symptoms in men may include:

• Difficulty getting or keeping an erection
• Problems with ejaculation, such as low volume or absence of ejaculate
• Pain, swelling, or a lump in the testicles
• Reduced sex drive
• Reduced facial or body hair, which may point to a hormone problem
• A history of testicular injury, undescended testicles, or hernia surgery

It is important to remember that these signs are not specific to infertility. Many people with irregular periods conceive without difficulty, and many men with normal sexual function have low sperm counts. Only a medical evaluation can determine whether a symptom is actually connected to fertility.

Causes and risk factors

Conception requires several steps to work together: an egg must be released from the ovary (ovulation), sperm must reach and fertilize the egg in the fallopian tube, and the resulting embryo must travel to the uterus and implant in its lining. A problem at any of these steps can cause infertility.

Common infertility causes in women include:

• Ovulation disorders – conditions in which eggs are released irregularly or not at all. Polycystic ovary syndrome (PCOS), a hormone disorder that affects the ovaries, is one frequent example. Thyroid problems and excess of the hormone prolactin can also disrupt ovulation.
• Blocked or damaged fallopian tubes – often the result of pelvic inflammatory disease, which is an infection of the reproductive organs, frequently caused by sexually transmitted infections such as chlamydia or gonorrhea.
• Endometriosis – a condition in which tissue similar to the uterine lining grows outside the uterus, which can affect the ovaries, tubes, and pelvic environment.
• Uterine or cervical problems – such as fibroids (non-cancerous growths in the uterine wall), polyps, structural differences present from birth, or scarring after surgery or infection.
• Diminished ovarian reserve – a reduced number or quality of remaining eggs, usually related to age but sometimes occurring earlier.
• Early menopause – when the ovaries stop working before the age of 40, also called primary ovarian insufficiency.

Common infertility causes in men include:

• Abnormal sperm production or function – low sperm count, poor sperm movement (motility), or abnormal sperm shape (morphology). Causes include genetic conditions, infections such as mumps, and enlarged veins in the scrotum known as a varicocele.
• Problems with sperm delivery – blockages in the tubes that carry sperm, previous vasectomy, or ejaculation disorders.
• Hormone imbalances – including low testosterone or problems with the pituitary gland in the brain that controls hormone signals.
• Damage from cancer treatment – radiation or chemotherapy can affect sperm production, sometimes permanently.

In some couples, testing reveals contributing factors in both partners. In others, no cause is found despite thorough evaluation; this is called unexplained infertility.

Risk factors that make infertility more likely in either partner include:

• Increasing age, particularly for women over 35 and, to a lesser degree, men over 40
• Smoking, including exposure to secondhand smoke
• Heavy alcohol use
• Being significantly overweight or underweight
• Untreated sexually transmitted infections
• Exposure to certain chemicals, pesticides, or high heat in the workplace or environment
• Extreme physical or emotional stress, or very intense exercise that disrupts menstrual cycles
• A history of cancer treatment

Infertility diagnosis

An infertility diagnosis begins with a detailed conversation. Your doctor will usually ask about how long you have been trying to conceive, menstrual history, sexual history, previous pregnancies, past illnesses and surgeries, medications, and lifestyle habits. Both partners are typically evaluated at the same time, because problems in either or both may contribute. A physical examination is also part of the initial visit.

Tests commonly used for women include:

• Ovulation testing – blood tests that measure hormone levels, such as progesterone, at specific points in the cycle to confirm whether ovulation is occurring.
• Ovarian reserve testing – blood tests such as anti-Müllerian hormone (AMH) and follicle-stimulating hormone (FSH), sometimes combined with an ultrasound count of small follicles in the ovaries, to estimate the remaining egg supply.
• Other hormone tests – including thyroid and prolactin levels.
• Pelvic ultrasound – an imaging test using sound waves to look at the uterus and ovaries for fibroids, cysts, or other abnormalities.
• Hysterosalpingography (HSG) – an X-ray in which dye is passed through the uterus and fallopian tubes to check whether the tubes are open.
• Hysteroscopy – a thin, lighted camera is inserted through the cervix to view the inside of the uterus directly.
• Laparoscopy – a minor surgical procedure using a small camera through the abdomen, sometimes used when endometriosis or tubal disease is suspected.

Tests commonly used for men include:

• Semen analysis – the central test for male fertility, which measures sperm count, movement, shape, and volume. It is often repeated because results can vary.
• Hormone testing – blood tests for testosterone and related hormones.
• Scrotal ultrasound – imaging to check for varicocele or other structural problems.
• Genetic testing – considered when sperm counts are very low or absent.
• Testicular biopsy – rarely, a small tissue sample to check whether sperm are being produced.

Not every test is needed for every couple. Your doctor will generally start with the least invasive tests and add others only if the initial results suggest a specific problem. Many hospital groups, including Acibadem, manage this evaluation through dedicated reproductive health departments.

Infertility treatment options

Infertility treatment options depend on the cause identified, the age of the partners, how long the couple has been trying, and personal preferences. Some couples need only minor adjustments; others need more advanced help. In many cases, treatment is offered in steps, moving to more involved options only if simpler ones have not worked.

Observation and lifestyle changes. When the evaluation shows no clear problem and the woman is younger, your doctor may suggest continuing to try for a further period while addressing factors such as smoking, alcohol use, weight, and the timing of intercourse around ovulation.

Medications. Fertility medicines are most often used to stimulate ovulation in women who do not ovulate regularly. Examples include oral tablets such as clomiphene or letrozole, and injectable hormones called gonadotropins. Other medications may treat specific underlying conditions, such as thyroid disease or high prolactin. In men, hormone treatment may be considered in selected cases of hormone imbalance. All fertility medications carry potential side effects, including an increased chance of twins or higher multiples with ovulation stimulation, which your doctor will discuss with you.

Intrauterine insemination (IUI). In this procedure, prepared sperm are placed directly into the uterus around the time of ovulation. It is a relatively simple option that may be suggested for mild male factor infertility, cervical problems, or unexplained infertility, often combined with ovulation medication.

Surgery. Surgical procedures may be used to remove fibroids or polyps, treat endometriosis, open blocked fallopian tubes, or repair a varicocele in men. Whether surgery is appropriate depends on the specific finding and how likely it is to improve the chance of pregnancy compared with other approaches.

Assisted reproductive technology (ART). This term covers treatments in which eggs and sperm are handled outside the body. The most widely known is in vitro fertilization (IVF), in which eggs are collected from the ovaries after hormone stimulation, fertilized with sperm in a laboratory, and one or more resulting embryos are transferred into the uterus. Variations include intracytoplasmic sperm injection (ICSI), in which a single sperm is injected directly into an egg, often used for severe male factor infertility. Embryos or eggs may also be frozen for future use. Specialist fertility units, such as the IVF and reproductive health department at Acibadem, typically coordinate these treatments.

Donor eggs, sperm, or embryos and gestational surrogacy. When a person cannot use their own eggs or sperm, or cannot carry a pregnancy, these options may be discussed. Availability depends heavily on local laws and regulations.

Fertility preservation. People facing cancer treatment or other conditions that may harm fertility may be offered egg, sperm, or embryo freezing before treatment begins.

No infertility treatment can guarantee a pregnancy. Success depends on many factors, and your doctor can explain what is realistic for your situation based on your test results rather than general averages.

Living with infertility and outlook

The outlook for infertility varies widely. Many couples who seek help do eventually conceive, either naturally after a longer period of trying, with medication, or with assisted reproductive technology. Others may not achieve a pregnancy despite treatment, and some choose to stop treatment or to consider adoption or a life without children. Age remains one of the most important factors influencing outcomes, particularly for women, which is why earlier evaluation is encouraged when risk factors are present.

Infertility often takes an emotional toll. Feelings of grief, frustration, anxiety, guilt, and strain on relationships are common and understandable. Treatment cycles can be physically demanding and involve waiting periods that many people find stressful. Counseling, support groups, and open communication with your partner can help. Some fertility programs include psychological support as a standard part of care, and it is reasonable to ask about this.

Practical self-care during treatment may include maintaining a balanced diet, staying physically active at a moderate level, limiting alcohol and caffeine, avoiding tobacco, and getting adequate sleep. These steps support general health, and your doctor may recommend them alongside medical treatment, although they do not replace it.

Frequently asked questions

What is infertility, and how is it different from simply not conceiving quickly?

Infertility is defined by time. Most couples who are trying to conceive do not become pregnant in the first month or two, and this is normal. Doctors generally use the term infertility only when a pregnancy has not occurred after twelve months of regular unprotected intercourse, or after six months when the woman is 35 or older. Until then, not conceiving is usually not considered a medical problem.

What are the first infertility symptoms I might notice?

Often there are none other than the absence of pregnancy. When symptoms are present, the most common in women are irregular or absent periods, which may signal a problem with ovulation. In men, changes in sexual function or testicular pain or swelling may be noticed. Because many contributing conditions are silent, an evaluation is based mainly on the time spent trying rather than on symptoms.

What are the most common infertility causes?

Ovulation disorders, blocked fallopian tubes, endometriosis, and uterine problems are among the frequent causes in women, while low sperm count or poor sperm quality is the main factor in men. Age affects both partners. In a meaningful proportion of couples, testing does not reveal a specific cause, which doctors call unexplained infertility.

How does infertility diagnosis work, and how long does it take?

Diagnosis usually starts with a medical history and physical examination for both partners, followed by a semen analysis for the man and hormone blood tests and a pelvic ultrasound for the woman. Additional tests such as an X-ray of the fallopian tubes may follow. Because some tests are timed to the menstrual cycle, a complete evaluation often takes one to two cycles, although this varies.

What infertility treatment options are usually tried first?

Treatment generally begins with the least invasive option suited to the identified cause. This may mean lifestyle changes and timed intercourse, oral medication to stimulate ovulation, or intrauterine insemination. If these are not successful or if the cause is more significant, such as blocked tubes or very low sperm count, your doctor may discuss surgery or in vitro fertilization.

Can infertility be treated if no cause is found?

Yes, unexplained infertility can still be treated. Options often include ovulation medication combined with intrauterine insemination, and IVF if those approaches are not successful. Because there is no specific problem to correct, treatment aims to increase the overall chances of conception in each cycle. Your doctor may recommend a plan based on the woman’s age and how long you have been trying.

Does age affect infertility in men as well as women?

Female fertility declines more sharply, especially after the mid-thirties, because egg quantity and quality fall over time. Male fertility also declines with age, though more gradually; sperm quality tends to decrease and the chance of certain genetic changes rises. Age is therefore considered for both partners during evaluation and treatment planning.

When to see a doctor

Consider a fertility evaluation if you have been trying to conceive for twelve months without success, or for six months if the woman is 35 or older. Your doctor may suggest an earlier evaluation if either partner has known risk factors, such as irregular or absent periods, a history of pelvic infection or endometriosis, previous cancer treatment, a history of testicular problems, or two or more miscarriages.

Seek prompt medical attention if you experience any of the following red-flag signs, as they may indicate a condition that needs urgent care:

• Sudden, severe pelvic or abdominal pain, especially if you could be pregnant, which can be a sign of an ectopic pregnancy (a pregnancy growing outside the uterus)
• Heavy vaginal bleeding that soaks through pads rapidly, or bleeding with dizziness or fainting
• Fever with pelvic pain or unusual vaginal discharge, which may indicate a serious infection
• Sudden severe testicular pain or swelling, which can signal a twisted testicle or infection
• A new lump in the testicle
• During fertility treatment, severe abdominal bloating, rapid weight gain, shortness of breath, or vomiting, which may be signs of ovarian hyperstimulation syndrome, a reaction to fertility medication
• Thoughts of harming yourself or overwhelming distress related to fertility struggles

Infertility itself is rarely an emergency, but the conditions that cause it, and the treatments used for it, can occasionally lead to complications that require rapid assessment.