Can Irregular Periods Cause Infertility?

Monday, April 20, 2026

SAEDNEWS: By stimulating ovulation—especially in women who are trying to conceive—and treating insulin resistance, ovulation and regular menstrual cycles are often restored and regulated.

Can Irregular Periods Cause Infertility?

According to Saednews, Irregular menstruation, absence of menstrual periods, or abnormal bleeding is often a sign that ovulation is not occurring properly. Ovulation-related problems account for approximately 30–40% of all cases of female infertility.

Although irregular menstrual cycles can often be treated with medication, if the underlying cause is conditions such as thyroid disorders, adrenal gland dysfunction, or pituitary gland issues, these can also affect ovulation. This article provides information about fertility in the presence of ovulation problems, as well as polycystic ovary syndrome (PCOS) and available fertility treatments for this condition.


Fertility in the Presence of Ovulation Problems

If menstrual irregularities are not caused by a specific medical condition, doctors usually prescribe ovulation-stimulating medications to help with fertility. One of the most common first-line treatments is clomiphene citrate.

This medication has been used for decades to help women conceive and has the advantage of being taken orally rather than by injection. It works by stimulating the ovaries to produce eggs and is used to induce ovulation in women with irregular or absent ovulation.

Clomiphene is most effective in women who do not ovulate at all. About 10% of women taking clomiphene for infertility may experience multiple pregnancies (twins or more).

The dosage is determined by a physician. A typical starting dose is 50 mg daily for five days, usually beginning on the third, fourth, or fifth day of the menstrual cycle.

Ovulation typically occurs about seven days after the last dose. If ovulation does not occur, the doctor may increase the dose by 50 mg per month, up to a maximum of 150 mg per day.

Once ovulation begins, doctors usually recommend continuing clomiphene for three to six months before considering other options. If pregnancy does not occur during this time, alternative medications may be prescribed, or the patient may be referred to a fertility specialist.

Some fertility medications may also affect cervical mucus and make it harder for sperm to reach the uterus. In such cases, assisted reproductive techniques such as in vitro fertilization (IVF) or intrauterine insemination (IUI) may be recommended.

Depending on the situation, doctors may prescribe stronger injectable fertility drugs such as Gonal-F or other follicle-stimulating hormones. These medications promote follicle growth and egg development in the ovaries.

These stronger treatments can sometimes overstimulate the ovaries, leading to abdominal bloating and discomfort. In severe cases, this condition may require hospitalization. Doctors monitor hormone levels using frequent vaginal ultrasounds and blood tests. About 90% of women ovulate with these medications, and 20–60% may achieve pregnancy.


Polycystic Ovary Syndrome (PCOS)

Polycystic ovary syndrome (PCOS) is a common ovulation disorder affecting approximately 5–10% of women. It is often caused by hormonal imbalances. In many cases, the ovaries become enlarged and may contain multiple small fluid-filled cysts.

Symptoms include:

  • Absence of menstruation, irregular cycles, or abnormal bleeding

  • Irregular or absent ovulation

  • Weight gain or obesity

  • Insulin resistance

  • High blood pressure

  • Abnormal cholesterol and elevated triglycerides

  • Excess hair growth on the body and face

  • Acne or excessively oily skin

  • Thinning hair or male-pattern hair loss


Fertility Treatment in PCOS

If a woman with PCOS is overweight, weight loss can significantly improve the chances of conception. Doctors may also prescribe medications to reduce insulin levels, as insulin resistance is common in women with PCOS.

Chronically high insulin levels can increase the risk of diabetes. Women with PCOS may also have a higher risk of heart disease, type 2 diabetes, and endometrial cancer, especially if the condition is untreated.


Does PCOS Cause Infertility?

PCOS cannot be completely cured, but its symptoms and related infertility can be managed effectively.

With ovulation induction treatments—especially for women trying to conceive—and management of insulin resistance, ovulation and menstrual cycles can often become more regular.

Another treatment option for women with PCOS is assisted reproduction techniques such as IVF.