An occasional skipped cycle is normal — but a persistent pattern can signal a hormonal issue worth investigating. Here's how to tell the difference.
A typical menstrual cycle runs every 21–35 days, with bleeding lasting 2–7 days. Cycles that fall outside this range, vary by more than 7–9 days month to month, or stop altogether are considered irregular.
Common Causes
PCOS is the most common reason for irregular cycles, followed by thyroid imbalance, high prolactin, significant weight change, intense exercise, chronic stress and approaching menopause. Each cause needs a different approach — which is why a proper work-up matters.
How It Affects Fertility
Irregular cycles often mean ovulation is happening unpredictably — or not at all. Without ovulation, conception is not possible. The good news: in most cases, treating the underlying hormonal issue restores ovulation and natural conception becomes possible.
Symptoms Worth Tracking
Note your cycle length, flow heaviness, pain levels, acne, hair changes, weight shifts and mood patterns. Apps make this easy. Bringing 3–6 months of tracked data to your first visit accelerates diagnosis significantly.
When to See a Specialist
See a fertility specialist if your cycles are consistently shorter than 21 days or longer than 35, if you skip three or more periods in a row, if bleeding is unusually heavy, or if you have been trying to conceive for 12 months (or 6 months if you are over 35).
Irregular periods are common — and almost always treatable. They are a signal, not a verdict, and the earlier you act, the more options you have.
Have questions about your own journey?
A relaxed first conversation with Dr. Maheshwari can give you clarity, options and a plan tailored to you.
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