Understanding your menstrual cycle
What a "typical" cycle looks like, why cycles vary, and when to talk to a health professional.
කියවීමට මිනිත්තු 4සමාලෝචනය කළේ 2026 ඉල් 7
A menstrual cycle is counted from the first day of one period to the first day of the next. For many adults it lasts between 21 and 35 days, and it is common for the length to vary a little from month to month.
What can affect your cycle
- Stress and sleep
- Illness or significant weight change
- Some medicines and contraception
- Life stages such as adolescence, after childbirth and perimenopause
When to seek advice
Talk to a doctor or your nearest MOH office if your periods suddenly change, are very painful, last longer than 7 days, are very heavy, or if you bleed between periods.
This information is educational and is not a substitute for professional medical advice.