Irregular periods: how many days is too long?

Consider both duration and impact: note the start and end dates, whether flow is getting heavier, clots, night-time changes, pain, dizziness, and whether you can continue ordinary activities. Irregular cycles can occur when ovulation is inconsistent, including with Anovulation or Polycystic Ovary Syndrome. A long bleed may also relate to pregnancy, contraception, thyroid changes, fibroids, or a bleeding disorder. The length of a bleed cannot identify its cause on its own.

Keep a written record and arrange a clinical review if bleeding is longer than your usual pattern, keeps recurring, or leaves you exhausted. Tell the clinician about contraception, medicines that affect clotting, pregnancy possibility, pain, and previous anaemia. They may assess blood loss, check for anaemia, and choose tests based on your history. Treatment might address the cause or reduce bleeding; the Combined Pill is one possible option for some people, but it is not suitable for everyone.

Get urgent help if bleeding is rapidly soaking through protection, you feel faint or short of breath, have severe pelvic pain, or may be pregnant. Seek prompt review for a bleed that does not settle, repeated prolonged episodes, or increasing weakness. Do not wait for a particular day count when symptoms are severe. Conditions such as Premature Ovarian Insufficiency or Perimenopause may be considered only in an appropriate clinical context; prolonged bleeding does not prove either condition.

Ask whether your bleeding pattern could cause anaemia, whether pregnancy or medication needs checking, which tests are appropriate, and what treatment can reduce flow. Ask exactly which symptoms should prompt urgent reassessment.