How often should I change my underwear?

Generally it is recommended to change a batch of new underwear in 3 months

But because we have an average of 0.1 grams of excrement on each pair of worn underwear, and there are bacteria on the excrement, even if it is washed and dried, the bacteria on it can not be completely eliminated.

How about the panties need to be replaced:

Wearing a long time to appear deformation loose, sticky secretion color, fabric hard not absorb sweat, easy to aggravate the intimate parts of the panties moisture should be changed!

1, 15 times: physiological period special underwear can only be used 15 times.

2, 20 times: sports-specific underwear can be used up to 20 times.

3, 30 times: daily wear underwear can be washed up to 30 times.

4, 6 months: underwear worn no more than once a week can be used for 6 months

5, 1 year: never worn underwear can be kept sealed for up to 1 year.