There are several common misconceptions about menstruation that still exist in many cultures and societies. Here are some of the most common ones:

1. Menstruation is dirty: One of the most common misconceptions is that menstruation is dirty or shameful. This belief leads to the stigmatization of menstruating women, which can result in discrimination, isolation, and limited access to resources like sanitary pads.
2. Menstruation lasts only for a day or two: Another common misconception is that menstruation only lasts for a day or two. In reality, menstrual bleeding usually lasts for 3-7 days, and the entire menstrual cycle can last for an average of 28 days.
3. Menstruation stops in water: Some people believe that menstruation stops in water, such as when swimming or taking a bath. However, this is not true. Menstrual bleeding can continue in water, but it may be harder to detect because the water can dilute the blood.
4. Menstrual blood is different from regular blood: Some people believe that menstrual blood is different from regular blood and is therefore impure. However, menstrual blood is the same as regular blood and is not harmful or dangerous.
5. You can’t get pregnant during menstruation: Some people believe that you can’t get pregnant during menstruation. While the chances of getting pregnant during menstruation are lower, it is still possible to get pregnant if ovulation occurs during or immediately after menstruation.

These misconceptions can lead to harmful practices and beliefs about menstruation. Therefore, it is important to educate oneself and others about the facts surrounding menstruation to reduce stigma and promote menstrual health.