Common Causes of Irregular Periods and When to Seek Help

Irregular periods can be a source of concern for many women. Understanding the underlying causes and knowing when to seek medical help is crucial for maintaining reproductive health. Dr. Shweta Mendiratta, recognized as the best gynecologist in Faridabad, offers invaluable insights and expert care for women experiencing menstrual irregularities. In this article, we will explore the common causes of irregular periods.

What Constitutes Irregular Periods?

A typical menstrual cycle ranges from 21 to 35 days, and menstruation lasts about 2 to 7 days. When periods fall outside this range or exhibit significant variation in cycle length, they are considered irregular. Some common types of irregular periods include:

  • Oligomenorrhea: Infrequent periods occurring more than 35 days apart.
  • Polymenorrhea: Frequent periods occurring less than 21 days apart.
  • Menorrhagia: Heavy or prolonged menstrual bleeding.
  • Metrorrhagia: Bleeding between periods or irregular cycles.

Common Causes of Irregular Periods

Hormonal Imbalances

Hormonal imbalances are a leading cause of menstrual irregularities. The menstrual cycle is regulated by hormones such as estrogen and progesterone. Any disruption in their levels can result in irregular cycles. Conditions like polycystic ovary syndrome (PCOS), thyroid disorders, and perimenopause often involve hormonal imbalances that affect menstrual regularity.

Polycystic Ovary Syndrome (PCOS)

PCOS is a common endocrine disorder affecting women of reproductive age. It is characterized by the presence of multiple cysts on the ovaries, irregular ovulation, and hormonal imbalances. Women with PCOS often experience menstrual irregularities, acne, and excessive hair growth.

Thyroid Disorders

The thyroid gland produces hormones that regulate metabolism. Both hyperthyroidism (overactive thyroid) and hypothyroidism (underactive thyroid) can disrupt the menstrual cycle. Symptoms such as weight changes, fatigue, and irregular periods may indicate a thyroid issue.

Stress and Anxiety

Psychological stress and anxiety can affect the hypothalamus, a part of the brain that regulates the menstrual cycle. High stress levels can lead to missed periods or irregular cycles. Managing stress through relaxation techniques, exercise, and counselling can help restore regularity.

Significant Weight Changes

Sudden weight loss or gain can disrupt hormonal balance and affect menstruation. Low body weight or excessive exercise can lead to a condition known as hypothalamic amenorrhea, where periods stop altogether. Conversely, obesity can contribute to hormonal imbalances and irregular periods.

Eating Disorders

Eating disorders such as anorexia nervosa and bulimia can cause severe hormonal disruptions, leading to irregular or absent periods. These conditions require medical intervention and treatment to restore normal menstrual function.

Chronic Medical Conditions

Chronic conditions like diabetes, celiac disease, and irritable bowel syndrome (IBS) can impact menstrual regularity. Managing these underlying conditions is essential for maintaining a regular menstrual cycle.


Certain medications, including contraceptives, antipsychotics, and chemotherapy drugs, can affect menstrual cycles. It is important to discuss any changes in menstruation with a Gynecologist when starting a new medication.


The transition to menopause, known as perimenopause, typically occurs in women in their late 40s to early 50s. During this time, hormonal fluctuations can cause irregular periods, along with symptoms like hot flashes and night sweats.

When to Seek Help

While occasional irregular periods can be normal, persistent irregularities warrant medical attention. Dr. Shweta Mendiratta, the best gynecologist in Faridabad, emphasizes the importance of seeking help in the following situations:

  • Prolonged Irregularity: If your periods have been irregular for several months without any apparent cause, it’s time to consult a gynecologist.
  • Severe Pain: Experiencing severe menstrual pain or cramps that interfere with daily activities is a red flag.
  • Heavy Bleeding: If you experience heavy menstrual bleeding that requires frequent changing of sanitary products, seek medical advice.
  • Missed Periods: Missing periods for three or more consecutive months (excluding pregnancy) should be investigated.
  • Other Symptoms: Symptoms such as excessive hair growth, sudden weight changes, or unusual fatigue in conjunction with irregular periods should not be ignored.

Importance of Consulting Dr. Shweta Mendiratta

Dr. Shweta Mendiratta, a leading gynecologist in Faridabad, provides comprehensive care for women experiencing menstrual irregularities. With her extensive experience and specialized knowledge, she offers personalized treatment plans tailored to each patient’s needs. Dr. Mendiratta’s approach includes:

  • Accurate Diagnosis: Utilizing advanced diagnostic tools and techniques to identify the root cause of irregular periods.
  • Personalized Treatment: Developing individualized treatment plans that may include lifestyle modifications, medication, or hormonal therapy.
  • Patient Education: Providing education and guidance to help patients understand their condition and manage their symptoms effectively.
  • Holistic Care: Addressing both physical and emotional aspects of menstrual health to ensure overall well-being.

In conclusion, Irregular periods can be caused by various factors, including hormonal imbalances, medical conditions, and lifestyle changes. Recognizing when to seek medical help is crucial for maintaining reproductive health. Consulting an expert like Dr. Shweta Mendiratta, the best gynecologist in Faridabad, ensures that you receive accurate diagnosis, personalized treatment, and comprehensive care. If you are experiencing persistent menstrual irregularities, don’t hesitate to seek professional advice and take proactive steps towards achieving optimal health.