The bad smell during your period is usually caused by a combination of factors including the presence of vaginal bacteria mixing with menstrual blood, hormonal changes affecting blood pH, and how long the blood stays in the vagina before being expelled. Menstrual blood contains iron, which can oxidize and create a metallic or distinct smell. Poor hygiene, such as not changing pads or tampons frequently, can also make the odor stronger. Additionally, if you notice a very strong, fishy, or rotten smell, it could indicate an infection like bacterial vaginosis or that a tampon has been left in too long. Here are the main reasons why period blood might smell bad:
- Vaginal bacteria interacting with menstrual blood, which naturally has iron content, can produce a noticeable odor as the blood sits in the vagina for hours.
- Hormonal changes during menstruation alter vaginal pH, making it less acidic and more hospitable to bacteria that cause odor.
- Poor hygiene or prolonged use of tampons can increase bacteria growth, leading to a stronger, sometimes rotten smell.
- Infections such as bacterial vaginosis cause a strong fishy odor and other symptoms like unusual discharge and irritation.
Maintaining good hygiene by changing sanitary products regularly and washing the area gently can help reduce the smell. If the odor is very strong, unusual, or accompanied by other symptoms like irritation or discharge, it is advisable to see a healthcare provider to check for infections.
In summary, a bad period smell is often normal due to blood and bacteria interaction but could be a sign of infection or poor hygiene if it is very strong or unusual.
