Wrong birthday or gender listed on Yahoo account
The "Personal Info" section shows details about your account such as your name, nickname, birthday and gender. Review the following if you’ve noticed that your birthday or gender are listed incorrectly.
Wrong date of birth listed
For security reasons, it isn't possible to update or change the date of birth listed on your Yahoo account, even if you entered it incorrectly when you first registered your account. You'll need to open a new account if you'd like your account to reflect your accurate info.
Wrong gender listed
- Sign in and access your Account Info page.
- In the top-right, click Edit.
- In the "Gender" field, update your info.
- In the top-right, click Done.