Why does my Vauxhall Corsa's engine make a loud ticking noise?

I recently noticed that whenever I start my Vauxhall Corsa, the engine makes a loud ticking noise. It seems to go away after a few minutes of driving. What could be the cause of this and should I be concerned?

The ticking noise could be caused by a lack of oil in your engine. Make sure to check your oil levels regularly and top up if necessary.

It could also be due to a worn or loose fan belt. Have a mechanic check and replace if necessary to prevent further damage to your engine.

In some cases, the knocking noise could be due to faulty spark plugs. Have them checked and replaced if needed.