You should change your tampon every 4 to 6 hours, but never leave a single tampon in for more than 8 hours at a time. This timing helps prevent leakage and reduces the risk of Toxic Shock Syndrome (TSS), a rare but serious infection

. The exact frequency depends on your menstrual flow:

• For a heavier flow, you may need to change your tampon every 2 to 4 hours.
• For a lighter flow, changing every 6 to 8 hours may be sufficient, but still not exceeding 8 hours

It's also important to use the lowest absorbency tampon needed for your flow and adjust absorbency as your flow changes throughout your period. If a tampon is difficult to remove or the string is soaked, it’s time to change it sooner

. In summary:

• Change tampons every 4-6 hours as a general rule.
• Never exceed 8 hours of continuous use.
• Change more frequently with heavier flow.
• Use the appropriate absorbency for your flow level.

This approach ensures safety, comfort, and effective menstrual protection.