  We investigate inner structure of Schwarzschild black hole on a
five-dimensional spacetime S^3xR^2. To do this, we exploit a f\"unfbein scheme.
In particular, we construct an equation of state of hydrostatic equilibrium for
the five-dimensional Schwarzschild black hole, which is a five-dimensional
version of the Tolman-Oppenheimer-Volkoff equation on four-dimensional
manifold. We also investigate uniform density interior configuration of the
five-dimensional black hole which consists of incompressible fluid of density,
to find a general relativistic expression for pressure.
