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Ginekologija

Irregular Periods: Symptoms and Signs You Need Clinical Help

18 April 2026·6 min read

When Is a Cycle Considered Irregular?

A normal menstrual cycle in a healthy reproductive-age woman typically lasts between 21 and 35 days, with menstrual bleeding lasting approximately 3 to 7 days. An irregular cycle is confirmed when your body consistently deviates from these boundaries:

  • Bleeding occurs at intervals shorter than 21 days (polymenorrhoea).
  • Your cycles stretch beyond 35 days with long gaps between periods (oligomenorrhoea).
  • Menstruation is completely absent for 3 or more consecutive months (amenorrhoea).

Main Causes: Why Does My Cycle Skip or Stall?

1. Polycystic Ovary Syndrome (PCOS)

PCOS is statistically one of the most common causes of menstrual irregularity in young women today. In this condition, the ovary fails to release a mature egg during ovulation — the egg remains trapped under the ovarian surface. Without ovulation, there is no trigger for a regular period, so cycles become dramatically delayed by weeks or months. This disrupts natural fertility and conception planning significantly.

2. Thyroid Dysfunction

When the thyroid gland produces too little hormone (hypothyroidism) or too much (hyperthyroidism), the entire communication axis between the brain's pituitary gland and the ovaries is disrupted. This hormonal miscommunication directly manifests as absent, delayed, or unpredictable menstrual bleeding.

3. Extreme Physical Stress and Nutritional Deficiency

Excessive strenuous exercise without adequate recovery, severely restrictive low-calorie diets, and anorexic eating patterns can suppress oestrogen production to critically low levels. When the body perceives a survival threat, it shuts down reproductive function — periods simply stop.

Urgent Warning Signs That Require Immediate Clinical Attention

Every gynaecological visit is an investment in prevention. You must seek evaluation immediately if:

  • Your period has been absent for more than 3 consecutive months, and you have confirmed through blood tests (beta-hCG) that pregnancy is not the cause.
  • Bleeding occurs every 15 days or less.
  • You are under 45 years of age (nowhere near menopause) but experience hot flushes, severe night sweats, and other menopausal symptoms.

Trust your hormonal health to experienced endocrine-gynaecology specialists. Book your diagnostic evaluation without delay.

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