  In this paper we propose recurrence relations for the dipole densities in
QCD, which allows us to find these densities from the solution to the BFKL
equation. We resolve these relations in the diffusion approximation for the
BFKL kernel. Based on this solution, we found the sum of large Pomeron loops.
This sum generates the scattering amplitude that decreases at large values of
rapidity $Y$. It turns out that such behaviour of the scattering amplitudes is
an artifact of diffusion approximation. This approximation leads to the
unitarization without saturation both in deep inelastic scattering and in
dipole-dipole interaction at high energies.
