What is the perfect time to change sanitary napkin when having a period?

It is generally recommended to change sanitary napkins every 4 to 6 hours, depending on your flow and level of comfort. Here are some guidelines to help you decide when to change your sanitary napkin:

1. Check the fullness of the napkin. If it is more than half full, it's time to change it.

2. Pay attention to your flow. If it is particularly heavy, you may need to change your napkin more frequently.

3. Consider your level of comfort. If you feel any discomfort or dampness, it's best to change your napkin even if it's not full.

4. Practice good hygiene by washing your hands before and after changing your sanitary napkin.

For more information or any particular concern, consulting your gynecologist or healthcare provider is advisable, especially if you're feeling discomfort or having excessive or irregular bleeding.