Hair growing back

I’ve been a big silent reader on here and helped me so much though my treatment so thankyou all for that… I finished treatment on the 18th December and my doctor said there’s no sign off disease gotta have another scan in 3 months, my hair has started to grow back slowly but surely just wanted to know if it would grow in patches and if so have you guys shaved your hair again so it grows back all at the same length together or let it grow out?