I am a male. Why am I being squeezed out by female colleagues for no reason when I just joined a new company?

It is difficult to determine the cause of this situation as there are many possibilities. Here are some possible reasons:

Sexism: Female coworkers may dislike male coworkers and may exclude you because of sexism. In this case, you should report it to your supervisor or Human Resources department for help.

Not integrated into the team: New employees joining an already formed team may take some time to adapt and integrate. If you feel like you're not included in your team, you can try becoming more actively involved in team activities and building more connections with your colleagues.

Inappropriate conduct: Your behavior may make female colleagues feel uncomfortable or dislike you. For example, if you often tell jokes or make inappropriate jokes, this may offend them. You can try changing your behavior to get along better with your coworkers.

Prejudice or misunderstanding: Female colleagues may exclude you due to some misunderstandings or prejudices. You can try to resolve the issue through conversation or other means.

Whatever the reason, the best approach is to try to connect with your colleagues, understand their thoughts and feelings, and seek their support and cooperation. If the problem persists, you may consider reporting it to your supervisor or Human Resources for assistance.