Why Does My Period Smell So Bad? 5 Possible Causes

Summary: Have you ever wondered why your period smells? Don't worry, it is totally normal! The smell happens when your blood mixes with the natural bacteria in your vagina. Sometimes it smells metallic because the iron in your blood reacts with the air. Other times, it might smell sweet or like body odor.

However, if it smells fishy or rotten, you should pay attention. A fishy smell could mean you have a common infection called bacterial vaginosis (BV). A rotten smell might mean you accidentally left a tampon in for too long. To keep things fresh and safe, change your pad or tampon often and skip the douches—your body cleans itself! If you notice a really bad smell, itching, or pain, it is time to see a doctor.

For more details, see health at health.com/condition/menstruation/period-blood-smell (opens in new tab)