What can create a wormhole?

Could you kindly explain in simple terms what exactly could potentially lead to the formation of a wormhole? I've heard theories about it in relation to space-time continuum and black holes, but I'm still a bit hazy on the specifics. Could you elaborate on the potential scientific mechanisms or forces that might give rise to such a phenomenon? Is it a theoretical construct or do we have any empirical evidence pointing to its existence? I'm particularly interested in understanding the theoretical frameworks and any ongoing research in this fascinating area of physics.