Lesson 7
All About Periods
Key Ideas
- A period is when the lining of the uterus sheds each month, and blood flows out through the vagina over a few days.
- Periods are a normal, healthy part of puberty for bodies with a uterus.
- Periods usually start between ages 8 and 16 and typically happen about once a month. A period can last anywhere from 2 to 7 days.
- Products like pads and period underwear are worn in underwear to absorb the blood. Tampons are worn inside the vagina for the same purpose. A trusted adult can help figure out what works best.
- Some people feel cramps or discomfort during their period. This is common and a trusted adult can help with ways to feel better.
- Not everyone gets a period. Bodies with penises do not, and some intersex bodies or transgender people on certain hormones may not either. All of this is normal.
- Periods are not dirty or something to be ashamed of. They are a sign that a body is doing exactly what it is supposed to do.
| Term | Definition |
| Menstruation | The monthly process where the lining of the uterus sheds and blood flows out through the vagina. Also called a period. |
| Uterine lining | The soft, thick layer inside the uterus that builds up each month in case a fertilized egg arrives. If no egg arrives, it sheds during a period. |
| Menstrual cycle | The full monthly process of the uterus building up its lining and then shedding it. An average cycle is about 28 days, but this varies from person to person. |
| Pad | An absorbent material worn inside underwear to collect menstrual blood. |
| Period underwear | Special underwear with built-in absorbent layers that can be washed and reused to collect menstrual blood. |
| Tampon | A small absorbent product worn inside the vagina to collect menstrual blood. |
| Cramps | Aching or squeezing feelings in the lower belly that some people get during their period. They are common and usually go away after a day or two. |