Yes, you can retake the GRE exam if you are not satisfied with your scores. Here is a detailed explanation:

1. GRE Exam Overview:
The GRE (Graduate Record Examination) is a standardized test used by many graduate schools in the United States and other countries as part of the admissions process. It measures your verbal reasoning, quantitative reasoning, critical thinking, and analytical writing skills.

2. Retake Policy:
The Educational Testing Service (ETS), the organization that administers the GRE, allows test-takers to retake the exam if they are not satisfied with their scores. There are a few important points to keep in mind regarding the retake policy:

3. Frequency:
You can take the GRE once every 21 days, up to five times within any continuous rolling 12-month period. However, it's important to note that you should only retake the exam if you believe you can significantly improve your scores, as some graduate programs may consider all of your scores rather than just the highest.

4. Score Reporting:
When you retake the GRE, you have the option to select which scores you want to send to schools. This means that if you are satisfied with your new scores, you can choose to only send those scores to your desired institutions.

5. Preparation:
Before retaking the GRE, it is crucial to thoroughly prepare in order to improve your scores. Consider reviewing your previous test results to identify areas of weakness and focus your studying accordingly. Utilize study materials such as official GRE practice tests, study guides, and online resources to enhance your knowledge and test-taking skills.

6. Test Strategies:
In addition to studying the content, it is important to develop effective test-taking strategies. Familiarize yourself with the format and structure of the GRE, practice time management, and work on improving your pacing and accuracy. Taking timed practice tests can help simulate the real exam environment and improve your performance.

7. Registering for the Retake:
To retake the GRE, you need to register for a new test date through the ETS website. Be mindful of the registration deadlines and available test centers in your area. It is recommended to schedule the retake at a convenient time when you have had sufficient time to prepare.

In conclusion, you are allowed to retake the GRE exam if you are not satisfied with your scores. However, it is important to carefully consider the decision and invest time in preparing effectively in order to improve your scores.