  Scalar fields which carry charge can generally form non-topoligical solitons
(Q-balls), if the energy in the extended configuration is less than the energy
of an equivalent number of free quanta. For global Q-balls, such solitons exist
whenever the potential grows slower than quadratically. We show that even in
the absence of attractive interactions, finite temperature corrections can
generate Q-ball solutions, as the coefficient of cubic corrections is generally
negative. As an illustration of this, we consider the possibility of
constructing Q-balls using the Higgs field. We first show that the finite
temperature corrections would enable the existence of Higgs balls if the
Standard Model symmetry was ungauged. We then show that Higgs self-interactions
mediated by the Standard Model gauge bosons are sufficient to prevent the
existence of these states in the actual Standard Model, but they can be present
in a variety of extensions.
