The frequency of cutting hair depends on hair length, type, and personal preference. As a general guide:

• Very short hair: every 1 to 3 weeks
• Short hair: every 2 to 7 weeks
• Medium hair: every 2 to 3 months
• Long hair: every 2 to 4 months

Many stylists suggest regular trims between every 6 to 12 weeks for most hair types to maintain healthy hair and avoid split ends. Fine or short hair tends to need trims more often (every 4 to 6 weeks), while thick, curly, or long hair can go longer between cuts (up to 12 weeks or 6 months) depending on condition and style maintenance. Frequent trims help reduce split ends and promote healthier hair growth, as split ends can cause breakage and slower apparent growth. For specific hair types:

• Short hair: every 2 to 4 weeks to maintain the shape
• Medium length: every 6 to 12 weeks depending on texture and styling
• Long hair: every 6 months is common, but more frequent trims (every 8 to 12 weeks) are advised if there are signs of damage or split ends
• Curly hair: every 8 to 12 weeks to maintain curl health
• Bang trims: monthly, depending on style

Ultimately, how often to cut hair depends on individual hair health, growth rate, and desired style upkeep, but aiming for a trim every 6 to 12 weeks is a solid rule of thumb for most people.