  We analyze the interior geometry of static, spherically symmetric black holes
of the Einstein-Yang-Mills-Higgs theory. Generically the solutions exhibit a
behaviour that may be described as ``mass inflation'', although with a
remarkable difference between the cases with and without a Higgs field. Without
Higgs field the YM field induces a kind of cyclic behaviour leading to repeated
cycles of mass inflation - taking the form of violent explosions - interrupted
by quiescent periods and subsequent approaches to an almost Cauchy horizon.
With the Higgs field no such cycles occur. In addition there are non-generic
families with a Schwarzschild resp. Reissner-Nordstr{\o}m type singularity at
r=0.
