Regression deals with dependence amongst variables within a model. But it cannot always imply causation. ... It means there is no cause and effect reaction on regression if there is no causation. In short, we conclude that a statistical relationship does not imply causation.

Does regression analysis prove causation?

Regression is changes between a dependent and one or more independent variables, the changes observed in one variable due to some unit changes other variable(s). It does not indicate causality in phenomena.

Can regression be used for causation?

Regression can be used to determine a causal relationship between X and Y in a controlled environment. However, to determine the certainty of the cause you may need to pay attention to the mechanism (the process through which the cause occurs).