Yes, in some cases, you can join a PhD program without taking an entrance exam. Many universities offer direct admission to PhD programs based on certain criteria such as:

1. Academic Record: A strong academic record in your undergraduate and/or master's degree.


2. Research Experience: Demonstrated research experience through projects, publications, or relevant work experience.


3. Recommendations: Strong letters of recommendation from professors or supervisors who can attest to your research abilities.


4. Statement of Purpose: A well-written statement outlining your research interests, motivations, and goals.


5. Interview: Some programs may require an interview to assess your fit and readiness for doctoral research.

Check with individual universities and programs for specific admission requirements as they can vary widely.