What is high risk in trading?

Could you please elaborate on the concept of "high risk" in the context of trading? What specific factors contribute to a trade being categorized as high-risk? Are there certain markets or strategies that are inherently more risky than others? How can traders identify and manage these risks effectively? Additionally, could you discuss the potential rewards associated with high-risk trades and how they balance out the inherent risks? Understanding these points would greatly assist traders in making informed decisions and navigating the often volatile world of trading.