Chances of error are more in agile, as documentation is given less priority, which eventually puts more pressure on the QA team
New features are introduced quickly, which reduces the available time for test teams to identify whether the latest features are according to the requirement and does it truly address the business suits
Testers are often required to play a semi-developer roled
Test execution cycles are highly compressed
Very less time to prepare a test plan
For regression testing, they will have minimal timing
Change in their role from being a gate-keeper of quality to being a partner in Quality
Requirement changes and updates are inherent in an agile method, becoming the biggest challenge for QA