How often is it better to change the toilet brush

Toilet brush is a major source of pollution in the bathroom, especially if you do not pay attention to timely cleaning and disinfection of the toilet brush, so it needs to be replaced regularly, so how often to wash the toilet brush change it?
According to the degree of use of the toilet brush and its own material is different, the service life of the household toilet brush is also different, generally in the use of a period of time after the toilet brush, toilet brush will appear bristles off the phenomenon, will be easier to hide dirt, this time according to the frequency of use of the toilet brush is different, about 3-5 months, so it is recommended that every 3-5 months for a toilet brush, do not exceed six months.
Of course, this is not fixed, sometimes because do not pay attention to timely cleaning, or cleaning, toilet cleaning brush will be more dirty, and give off a big odor, it is not good to continue to use, but also can be directly replaced.