A period, also known as menstruation, is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. Your utuerus contracts during your period to expel the lining, which causes pain and discomfort in most women. It is usually the worst on your first day and eases as your period gets lighter.
Getting your period is a part of puberty and you will generally get your first period between the ages of 12 and 15, though it is not unusual to get your period as young as the age of 8. A delay in starting periods isn't usually a cause for concern. Most girls will be having regular periods by age 16 to 18.
An average menstruation cycle takes place over 28 days, with about 5 to 7 days of bleeding. When your period is heaviest, the blood will be bright red. On lighter days, it may be pink or brown. Typically, you'll lose 1 to 5 tablespoons of blood, though some women bleed more heavily than this.
You can buy period products to soak up or collect blood during your period, such as:
- Pads
- Tampons
- Menstural cups
It is common that the changes in your hormone levels before your period can cause physical and emotional changes, which is known as PMS (premenstrual syndrome). Typical symptoms include feeling bloated, breast tenderness, mood swings, acne, headaches, low sex drive.
Your periods will continue until you reach the menopause, which usually happens when you are in your mid-40s to mid-50s. Your periods will become less frequent over a few months or years before stopping altogether.
Your periods can change - for example, they may last longer or get lighter. It does not necessarily mean there is a problem, but it should be investigated.
Bleeding between periods, after having sex or after the menopause needs to be checked by a doctor.
If you miss a period and have had sex, you could be pregnant. However, if you miss 3 consecutive periods and have a negative pregnancy test, you should see a doctor.