In a React component, you can use as many useEffect hooks as you need. There is no strict limit imposed by React itself on the number of useEffect hooks you can use in a single component. You can use multiple useEffect hooks to manage different side effects within your component.

However, keep in mind that using a large number of useEffect hooks can make your component's code harder to read and understand. It's a good practice to organize your code and group related useEffect hooks together for better maintainability.

Additionally, consider the order of execution of the useEffect hooks. They will run in the order they appear in your component's code. If some useEffect hooks depend on the effects of others, you might need to manage their dependencies carefully to avoid unexpected behavior.

Overall, while there is no hard limit on the number of useEffect hooks you can use, it's important to strike a balance between using multiple hooks for specific purposes and keeping your codebase clean and maintainable.