According to Conway, hair type does have an impact on how often you need a trim. “Coarse hair is stronger and can handle hair cutting less often,” Conway told Cohorted Cult. “This type of hair can go 10 weeks without cutting if the hair is in good condition,” she continued. Fine or coloured hair, on the other hand, will split and break if you leave too long between cuts. “It is twice as likely to break off, causing it to look straggly and frayed,” she warned.