Is Your Thyroid Behind Your Cycle Changes?

Heavy periods, irregular cycles, hair loss, exhaustion. These aren't unrelated complaints — they're a pattern. Map your symptoms in 3 minutes.

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Thyroid disorders affect 1 in 8 women over their lifetime — and one of the earliest signs is a change in the menstrual cycle. Both underactive thyroid (hypothyroidism) and overactive thyroid (hyperthyroidism) produce distinct cycle disruption patterns that are frequently missed in standard GP consultations. This tool maps your cycle changes alongside your systemic symptoms to identify whether a thyroid investigation is warranted — and tells you exactly which blood tests to ask for by name.

Your Cycle1 of 12

Your Cycle

How would you describe your periods over the last 6–12 months?