The frequency of hair cutting varies from person to person, and the hair quality and hairstyle are different, but it is usually recommended to cut it every 4-6 weeks. Too frequent or too sparse hair cutting frequency may bring some problems.

The benefits of proper haircut frequency include:

1. Keep your hair clean and tidy: Trimming your hair often can keep the shape and lines of your hair and make it look clean and tidy.

2. Promote hair growth: Cutting hair can stimulate the blood circulation of scalp, provide nutrition and oxygen for hair, and promote the healthy growth of hair.

3. Prevent split ends and breaks: Trimming your hair regularly can reduce split ends and breaks, and make your hair healthier, stronger and more shiny.

4. Reduce hair knotting: hair that is not trimmed for a long time is easy to knot, which not only makes hair difficult to comb, but also leads to hair breakage and damage.

5. Keep the scalp healthy: Removing the split and broken parts of the hair can reduce the infection and inflammation on the scalp and keep the scalp healthy.

It should be pointed out that the frequency of hair cutting varies due to personal hair quality and hairstyle demand, and it is best to consult a professional barber for the specific frequency of hair cutting.