July 16, 2026

Irregular Menstrual Cycle: Common Causes and When to Consult

Learn why your periods are disrupted and the importance of an accurate gynecological diagnosis to regulate your menstruation.

Irregular Menstrual Cycle: Common Causes and When to Consult

An irregular menstrual cycle can be a sign of various hormonal or organic alterations that deserve a detailed medical evaluation.

A normal cycle is considered when menstruation occurs every 21 to 35 days. If your periods arrive with extreme variations, last longer than 7 days, or are absent for months, identifying the origin in our Reynosa clinic is fundamental to prevent fertility issues or endometrial imbalances.

Common Causes of Irregular Menstruation

  • 01.

    Common endocrine disorders: Polycystic ovary syndrome (PCOS), thyroid disorders (hypothyroidism/hyperthyroidism), and high prolactin levels.

  • 02.

    Stress and lifestyle factors: Rapid weight loss or gain, strenuous exercise, and severe emotional stress that alter brain-ovary communication.

  • 03.

    Organic uterine conditions: Presence of submucosal fibroids, endometrial polyps, or endometrial hyperplasia.

Regulate your cycle safely

Using regulating treatments must be based on an accurate diagnosis. Simply hiding the irregularity with hormones without knowing the underlying cause prevents a real solution.

The health of your cycle reflects your overall health. Book a gynecological evaluation in Reynosa for a safe and timely diagnosis.

Are your periods irregular or absent?

Schedule a diagnostic evaluation with hormone profile and high-definition ultrasound in Reynosa.

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