* Hair type: Women with oily hair are more likely to wash it daily.
* Lifestyle: Those who exercise frequently or work in environments that make their hair dirty may wash it more often.
* Cultural norms: Practices vary across different regions.
* Age: Younger women might wash their hair more frequently than older women.
Common estimates:
* Most studies suggest that a significant percentage of women wash their hair every 2-3 days, and some stretch that to once or twice a week. Washing daily is considered less common.
* You can usually find statistics that about 10-20% of women wash their hair every day or near daily.
It's important to note:
* These are estimates based on surveys, and individual habits vary widely.
* The trend has been shifting towards less frequent washing in recent years, as many people have learned about the benefits of allowing natural oils to condition the hair.
If you're looking for a specific, cited statistic, you'd need to search for recent surveys on hair washing habits.