6 to 8 weeks on average and 12 weeks at the very most.
Besides looking messy if you keep plaits in for too long it's also very difficult to diagnose any hair problems if you have extensions.
Hard water could be making your hair brittle or your hair fibres might not be getting enough moisture or protein. To see these issues you need to release your hair from the plaits.
There are things you can do to ensure your hair is doing well as discussed in these two blogs:
I now blog about wealth creation - so if you have any money questions meet me there, you can do all sorts of cool things like leave me a voicemail.
By Heather Katsonga-Woodward
I was a natural hair blogger and mixtress living between London & Chicago from 2012 to 2017. I always thought I was 4C but some say 4B; images below - you decide! Heather xx