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Published on: 4/7/2025

What Is Considered a Late Period and When Should I Be Concerned?

A late period is usually when your menstrual cycle is more than 7 days past the expected date. You should be concerned if this happens repeatedly or if you experience other unusual symptoms. If sexually active it's important to start with a pregnancy test.

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Explanation

Most women have a cycle that comes every 28 days, but cycles can differ from person to person. When your period is more than about a week late compared to your regular cycle, it is considered late. Occasional delays can be normal due to stress, changes in exercise, or shifts in weight, but regular missed periods might signal an underlying issue. Along with a late period, if you notice other symptoms such as heavy pain, unusual discharge, or have a history of irregular cycles, it may be time to talk to your healthcare provider. Sometimes hormonal imbalances, such as thyroid problems or conditions like polycystic ovary syndrome (PCOS), can cause shifts in your menstrual schedule. Also, severe stress or significant changes in your routine may affect your cycle. If your period remains late or you feel unwell, it is important to get checked so that any potential health concerns can be addressed promptly. Always keep track of your cycle and share any changes with your doctor to help ensure your overall well-being.

(References)

  • deProsse CA, Keettel WC. The missed menstrual period. Postgrad Med. 1977 Jan;61(1):251-2, 254, 256. doi: 10.1080/00325481.1977.11714526. PMID: 189296.

  • Attia GM, Alharbi OA, Aljohani RM. The Impact of Irregular Menstruation on Health: A Review of the Literature. Cureus. 2023 Nov 20;15(11):e49146. doi: 10.7759/cureus.49146. PMID: 38130524; PMCID: PMC10733621.

  • Thiyagarajan DK, Basit H, Jeanmonod R. Physiology, Menstrual Cycle. 2024 Sep 27. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan–. PMID: 29763196.

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