How often you need to trim your beard depends on your beard style. For shorter, well-defined styles like stubble, a trim every few days may be needed to keep it looking sharp. For medium to long beards, every two weeks is fine. I like to trim my beard every 4-5 days as this is when it starts to lose definition and looks a little scruffy. Always make sure to regularly snip away any stray hairs to keep that polished, well-maintained appearance. Note that growth rates vary from person to person, so these are not hard and fast rules.