In this paper, we study the existence and regularity results for nonlinear singular parabolic problems with a natural growth gradient term where is a bounded open subset of , , is the cylinder , , the lateral surface , , and are positive measurable bounded functions, , , and non-negative function belongs to the Lebesgue space with , and such that More precisely, we study the interaction between the term and the singular lower order term in order to get a solution to the above problem. The regularizing effect of the term on the regularity of the solution and its gradient is also analyzed.