Key takeaways

  • See a doctor after 12 months of trying if you are under 35, after 6 months if you are 35 or older, and right away if you are 40 or older or have known risk factors.
  • Irregular, absent, very heavy, or very painful periods are among the most useful early signs that ovulation or the uterus may need checking.
  • PCOS is the most common cause of ovulation-related infertility in Indian women; endometriosis and blocked fallopian tubes are also common and often under-diagnosed.
  • Infertility is not only a female issue. Male factor accounts for 40 to 50 percent of cases, so both partners should be evaluated at the same time.
  • Age and ovarian reserve matter. Fertility declines steeply after 35, and an AMH test can help with planning, though it does not predict natural pregnancy on its own.
  • Most causes are treatable. Even if one IVF cycle fails, cumulative success over several cycles is much higher.

When to Seek Evaluation: The Time-Based Thresholds

The first and most important decision is knowing when to stop trying on your own and get assessed. The guideline thresholds are consistent across major bodies including ACOG, ESHRE, NICE, and FOGSI:

  • Under 35: seek evaluation after 12 months of regular, unprotected intercourse without conceiving.
  • 35 or older: seek evaluation after 6 months.
  • 40 or older: seek evaluation immediately, or after 3 months at most.

These thresholds reflect two facts. First, about 80 to 85 percent of fertile couples under 35 conceive within 12 months and around 90 percent within 24 months, so most do not need any intervention. Second, age-related fertility decline is time-sensitive, which is why the window shortens as you get older. You can read more on this in our guide to how long it usually takes to get pregnant.

Several situations justify earlier evaluation, regardless of how long you have been trying:
  • History of pelvic inflammatory disease (PID) or any sexually transmitted infection
  • Known endometriosis or severe period pain
  • Prior pelvic or abdominal surgery (for ectopic pregnancy, ovarian cysts, fibroids, or appendicitis)
  • Known uterine fibroids or polyps
  • Prior chemotherapy or radiation
  • Two or more consecutive miscarriages
  • Severely irregular or absent periods
  • A known male-factor concern

In the Indian context, two points are worth flagging. Genital tuberculosis is more common here than in Western populations and is a recognised cause of tubal infertility that warrants early evaluation. And because many Indian women now marry and try to conceive at 30 or later, the 6-month threshold becomes relevant sooner than people expect. Acting promptly when a pattern warrants it is far better than spending more time on unsuccessful cycles than the evaluation itself would have taken.

Signs Related to Menstrual Cycle Patterns

Your menstrual cycle is one of the most informative windows into reproductive health. The following patterns are worth taking to a doctor:

  • Absent periods. No period by age 15, or no period for 3 or more months in someone who previously menstruated (and is not pregnant or breastfeeding). Causes include PCOS, hypothalamic amenorrhoea from significant weight loss or over-exercise, high prolactin, thyroid disease, premature ovarian insufficiency, and Asherman syndrome. See our breakdown of reasons periods go missing.
  • Very infrequent periods. Cycles longer than 35 days or fewer than 8 to 9 periods a year usually signal irregular or absent ovulation, common in PCOS, hypothyroidism, and high prolactin. Our guide to what irregular periods can mean covers this in depth.
  • Very short cycles. Under 21 days may point to a short luteal phase or declining ovarian reserve.
  • Very heavy periods. Soaking through protection faster than every 2 hours, passing large clots, or developing iron-deficiency anaemia can indicate fibroids, adenomyosis, or polyps.
  • Very painful periods. Pain severe enough to disrupt daily life or need strong painkillers can signal endometriosis or adenomyosis, both of which affect fertility.
  • Bleeding between periods. Persistent intermenstrual bleeding deserves evaluation for the cervix, endometrium, or a hormonal cause.

The overall pattern guides which tests matter most. Regular 26 to 34 day cycles with ovulation signs and no significant pain or heavy bleeding suggest normal ovulation and a healthy uterus. Very irregular cycles point toward an ovulation disorder; very heavy or painful cycles point toward a structural problem. If you are unsure whether you are ovulating, our guides on how to track ovulation, when ovulation actually happens, and the signs of anovulation can help you read your own cycle.

PCOS: The Most Common Cause of Ovulatory Infertility in India

Polycystic ovary syndrome (PCOS) is one of the most common hormonal disorders in Indian women of reproductive age, with prevalence estimates ranging from roughly 9 to 22 percent depending on the criteria and population studied. It is also the single most common cause of infertility due to irregular ovulation.

Diagnosis follows the Rotterdam criteria (endorsed by ESHRE and ASRM), which require at least 2 of these 3 features, after excluding other conditions:

  • Irregular or absent ovulation (often seen as cycles longer than 35 days or absent periods)
  • Signs of high androgens, either clinical (excess facial or body hair, acne, scalp hair thinning) or on a blood test
  • Polycystic ovarian morphology on ultrasound

The outlook is generally good. Many women with PCOS conceive on their own, especially with lifestyle changes; in those who are overweight, losing 5 to 10 percent of body weight can restore ovulation. The 2018 international PCOS guideline recommends letrozole as first-line ovulation induction (it gives better live-birth rates than clomiphene), with metformin as a second-line option, particularly where there is insulin resistance. Our detailed guide to PCOS fertility treatment walks through these steps and Indian success rates.

Indian women with PCOS tend to have higher rates of insulin resistance, often at a lower BMI than in some Western populations. An eating pattern built around whole grains, dals and legumes, vegetables, low-glycaemic fruits, and lean protein, with fewer refined carbohydrates and added sugars, suits Indian kitchens and supports both metabolic and reproductive health; our fertility diet guide expands on this.

Signs that should prompt a PCOS check: irregular or absent periods (the key sign), excess facial or body hair, persistent adult acne, scalp hair thinning, difficulty losing weight despite genuine effort, and a family history of PCOS or type 2 diabetes.

Endometriosis: A Common and Under-Diagnosed Cause

Endometriosis affects roughly 10 percent of women of reproductive age and is consistently under-diagnosed, partly because its pain is dismissed as "normal" period pain and partly because a definitive diagnosis traditionally requires laparoscopy. It involves endometrium-like tissue growing outside the uterus, most often on the ovaries (forming cysts called endometriomas), the pelvic lining, and nearby ligaments.

It can reduce fertility in several ways at once: distorted pelvic anatomy from adhesions, difficulty for the tubes to pick up the egg, altered ovarian function, an inflammatory pelvic environment, and effects on the lining's ability to accept an embryo. Our dedicated guide on endometriosis and infertility covers what this means for conception and treatment.

Classic symptoms include:

  • Period pain that worsens over time and is not relieved by over-the-counter painkillers
  • Deep pain during intercourse
  • Chronic pelvic pain
  • Pain with bowel movements, especially around periods
  • Difficulty conceiving

Importantly, symptom severity does not match disease extent: severe endometriosis can be silent, while mild disease can be very painful. Diagnosis is suspected from history and examination, supported by transvaginal ultrasound (which can spot endometriomas), and confirmed by laparoscopy. For fertility, current ESHRE guidance supports surgical management of larger endometriomas and excision of lesions in selected cases, followed by timed conception or assisted reproduction; IVF is often needed for moderate to severe disease and works well in experienced centres.

Worth noting: endometriosis has a genetic component, with first-degree relatives at higher risk. It is also sometimes confused with adenomyosis, which our guide on adenomyosis versus endometriosis helps untangle.

Tubal Factor: Fallopian Tube Damage and Indian-Specific Risks

Tubal factor infertility means one or both fallopian tubes are damaged or blocked, so sperm cannot reach the egg or the fertilised embryo cannot reach the uterus. It accounts for roughly 25 to 35 percent of female infertility in Indian women, somewhat higher than in some Western populations, largely because of higher rates of genital tuberculosis and certain reproductive-tract infections. Our guide on getting pregnant with blocked tubes and other fallopian tube problems goes deeper.

Key risk factors:

  • Past pelvic inflammatory disease, often from chlamydia or gonorrhoea
  • Genital tuberculosis, a major cause of tubal infertility in parts of India
  • Past ectopic pregnancy
  • Previous pelvic surgery (ovarian cysts, fibroids, ectopic, or appendicitis with peritonitis)
  • Endometriosis with adhesions

The first-line test is hysterosalpingography (HSG), an X-ray in which dye is passed through the uterus to show whether the tubes are open. HSG typically costs around Rs 2,000 to Rs 6,000 at Indian centres and is done on cycle days 6 to 10; our HSG and tubal patency guide explains the experience. Alternatives include saline-and-ultrasound testing (HyCoSy) and laparoscopy with a dye test, which is the most sensitive but most invasive.

Treatment depends on the extent of damage. Mild damage may be helped by laparoscopic surgery, while severe blockage usually needs IVF, which bypasses the tubes entirely. A fluid-filled blocked tube (hydrosalpinx) is usually removed or clipped before IVF because the fluid lowers implantation rates. In Indian women with infertility and risk factors, doctors specifically screen for genital tuberculosis using endometrial biopsy, GeneXpert, and related tests.

Thyroid, Prolactin, and Other Endocrine Causes

Several hormone disorders affect fertility through subtle signs that are easy to miss.

Hypothyroidism (underactive thyroid) is very common in Indian women, with prevalence estimates of around 10 to 15 percent in reproductive-age groups. Both subclinical and overt hypothyroidism can cause irregular ovulation, a short luteal phase, and higher miscarriage risk. Signs include fatigue, weight gain, cold intolerance, dry skin, hair loss, constipation, low mood, and menstrual changes. A TSH test costs roughly Rs 200 to Rs 600 at NABL-accredited labs and belongs in every fertility work-up. Treatment with levothyroxine, aiming for a TSH below 2.5 mIU/L before and during early pregnancy, is standard. Our thyroid and fertility guide covers this in detail.

High prolactin (hyperprolactinaemia) can stop ovulation and cause absent periods. Causes include a benign pituitary tumour (prolactinoma), certain medications (some antipsychotics and antidepressants, metoclopramide), an underactive thyroid, and stress. Signs include irregular or absent periods and milky nipple discharge unrelated to pregnancy or breastfeeding. A morning prolactin blood test costs around Rs 300 to Rs 800, and treatment with dopamine-agonist tablets restores ovulation in most cases; see our guide on high prolactin as a quiet cause of difficulty conceiving.

Premature ovarian insufficiency (POI) means the ovaries lose function before age 40, with high FSH and low oestrogen. Signs include irregular periods progressing to absent ones, hot flushes, night sweats, vaginal dryness, and difficulty conceiving. Diagnosis rests on a raised FSH (above 25 IU/L) on two occasions a month apart, usually with very low AMH. Treatment for POI-related infertility usually involves donor-egg IVF.

Diabetes, both type 1 and type 2, affects fertility and should be optimised before conception, with a target HbA1c below 6.5 percent.

Uterine Factors: Fibroids, Polyps, and Adhesions

The uterus is where an embryo implants and a pregnancy grows, so several uterine conditions matter for fertility.

Fibroids (leiomyomas) are very common, affecting an estimated 20 to 40 percent of Indian women by age 40, though most do not affect fertility. Location matters more than size: submucosal fibroids that bulge into the cavity have the biggest impact on implantation and miscarriage risk, intramural fibroids may matter if large or if they distort the cavity, and outward-projecting subserosal fibroids rarely affect fertility. Signs include heavy or prolonged bleeding, pelvic pressure, and urinary frequency. Our uterine fibroids guide explains diagnosis and when surgery (myomectomy) helps fertility.

Endometrial polyps are small overgrowths of the lining that can cause irregular bleeding, recurrent miscarriage, or failed implantation. They are found on saline-infusion sonography or hysteroscopy and are easily removed.

Asherman syndrome is scarring inside the uterus, usually after a dilation and curettage (D&C) procedure, severe infection, or genital tuberculosis. The tell-tale sign is very light or absent periods after such an event. It is diagnosed and treated by hysteroscopy.

Congenital uterine anomalies (such as a septate or bicornuate uterus) more often cause recurrent miscarriage or preterm birth than primary infertility. A septate uterus may benefit from surgical correction for recurrent loss.

Signs that should prompt a uterine check: heavy menstrual bleeding, severe period pain, recurrent miscarriage, a pelvic mass, or very light or absent periods after a gynaecological procedure or pregnancy.

Age, Ovarian Reserve, and the AMH Conversation

Age is the single most important factor you cannot change, and it deserves honest attention from anyone planning a pregnancy. Female fertility declines gradually from the late 20s, more steeply from 35, and substantially from 38 to 40 onward, because both egg quantity and egg quality fall.

The approximate chance of conceiving per month is around 25 to 30 percent at age 25, 15 to 20 percent at 35, 5 to 10 percent at 40, and 1 to 2 percent at 43. Miscarriage risk rises in parallel, from about 10 percent under 30 to 40 to 50 percent at 40 and above, mostly due to chromosomal changes in the eggs. Our guide on fertility and age gives the realistic picture for Indian women and men.

AMH (anti-Müllerian hormone) reflects the size of your remaining egg pool. The test costs roughly Rs 1,500 to Rs 3,500 and can be done on any cycle day. Typical median values fall with age: around 2.5 to 3 ng/mL at 30, 1.5 to 2 at 35, about 1 at 40, and 0.5 at 45. An AMH below 1 ng/mL suggests reduced reserve, and below 0.5 ng/mL suggests very low reserve. Crucially, AMH does not accurately predict your chance of natural pregnancy, because egg quality matters as much as quantity; it mainly predicts how the ovaries will respond to IVF stimulation. Our guides on what counts as a good AMH level for getting pregnant and ovarian reserve and AMH testing explain how to interpret your result.

Given the Indian pattern of later marriage and conception, women planning to conceive in their mid-30s or later benefit from AMH testing for planning, including the option of freezing eggs or embryos if reserve is declining faster than expected.

What the Basic Fertility Workup Looks Like

When a couple seeks help, the basic female work-up follows a standard pattern endorsed by ASRM, ESHRE, NICE, and FOGSI. Remember that infertility is not only a female issue: a semen analysis for the male partner is done at the same time, and male factor accounts for a large share of cases.

History covers cycle pattern (regularity, length, flow, pain), past pregnancies and losses, contraceptive use, past pelvic infections or surgery, medications, lifestyle (weight, smoking, alcohol, exercise), and family history.

Examination assesses BMI, signs of excess androgens, the thyroid, and a pelvic examination.

Blood tests typically include day 2 to 4 FSH, LH, and oestradiol, AMH, TSH, and prolactin, plus a day-21 (or 7-days-post-ovulation) progesterone to confirm ovulation.

Imaging is a transvaginal ultrasound to check the uterus, ovaries, antral follicle count, and any fibroids, polyps, or endometriomas, with HSG or saline-infusion sonography to check the tubes and cavity.

Screening for chlamydia, gonorrhoea, and rubella immunity is standard, and genital tuberculosis screening is added where there are risk factors. Depending on results, your doctor may add hysteroscopy, laparoscopy, or genetic tests.

The basic work-up usually takes 2 to 6 weeks and costs roughly Rs 10,000 to Rs 25,000 at most Indian centres, with additional investigations costing more. Insurance coverage varies; some employer plans and certain government schemes cover specific investigations. If you have irregular periods, our practical guide on getting pregnant with irregular cycles is a useful next step while you arrange testing.

When to See a Doctor

Book a fertility evaluation, rather than waiting, if any of the following apply:

  • You have been trying for 12 months (under 35) or 6 months (35 or older) without conceiving, or you are 40 or older
  • Your periods are absent, very irregular, very heavy, or so painful they disrupt daily life
  • You have a history of PID, an STI, pelvic surgery, ectopic pregnancy, or genital tuberculosis
  • You have had two or more miscarriages
  • You have signs of a hormone problem such as milky nipple discharge, sudden weight changes, or excess facial hair
  • Your partner has a known fertility concern

Seek urgent care for severe one-sided pelvic pain with a missed period (which could be an ectopic pregnancy), heavy bleeding causing dizziness, or fever with pelvic pain. Most causes of infertility are treatable, and earlier evaluation simply gives you more options.

Myths vs Facts

Frequently asked questions

What are the first signs of infertility in a woman?

The most useful early signs are changes in your periods: cycles that are absent, very irregular (longer than 35 days), very heavy, or very painful. Other clues include excess facial or body hair, milky nipple discharge, or simply not conceiving after 12 months of trying (6 months if you are 35 or older). Any of these is worth discussing with a doctor.

Can you be infertile and still have regular periods?

Yes. Regular periods suggest you are probably ovulating, but they do not rule out blocked fallopian tubes, endometriosis, uterine problems, or age-related decline in egg quality. This is why evaluation is recommended after the standard time thresholds even if your cycles are regular.

Does PCOS mean I can't get pregnant?

No. PCOS is the most common cause of ovulation-related infertility, but the outlook is generally good. Many women conceive on their own, and losing 5 to 10 percent of body weight (if overweight) can restore ovulation. When help is needed, letrozole tablets are the recommended first-line treatment, with IUI or IVF as later steps.

When should an Indian woman get an AMH test?

An AMH test is most useful for planning if you are in your mid-30s or older, are considering delaying pregnancy, or have risk factors such as previous ovarian surgery or chemotherapy. It reflects egg quantity and predicts response to IVF, but it does not reliably predict your chance of conceiving naturally, so it should be interpreted alongside your age.

How much does a fertility workup cost in India?

A basic female fertility work-up usually costs around Rs 10,000 to Rs 25,000 and takes 2 to 6 weeks, with additional tests costing more. Individual tests are inexpensive: TSH is roughly Rs 200 to Rs 600, prolactin Rs 300 to Rs 800, AMH Rs 1,500 to Rs 3,500, and HSG Rs 2,000 to Rs 6,000. Many large centres offer packaged pricing.

Is infertility always permanent?

No. Most causes, including ovulation disorders, thyroid and prolactin problems, mild tubal disease, and many uterine factors, are treatable. Even when IVF is needed, success accumulates over several cycles rather than being decided by a single attempt.

Sources