  In 2015, the LHCb collaboration endorsed the proposal to pursue an ambitious
heavy-ion physics program. In 2013, LHCb has demonstrated its capabilities to
operate successfully in p-Pb and Pb-p collisions, leading already to several
important publications in the field. The measurements of the nuclear
modification factor and forward-backward production of prompt and displaced
J/$\psi$, $\psi$(2S) and $\Upsilon$(1S) states, as well as the production of
prompt $D^{0}$ mesons, have allowed to extend the knowledge of Cold Nuclear
Matter effects on open heavy flavours and quarkonium production. The
measurement of Z-boson production, important to constrain nuclear PDFs, and the
measurement of two-particle angular correlations, probing collective effects in
the dense environment of high energy collisions, have also been performed.
Furthermore, LHCb is the only experiment at the LHC that can be operated in
fixed-target mode, owing to the injection of a small amount of gas inside the
LHCb collision area. There have been several p-gas and Pb-gas data taking
periods during Run 1 and beginning of Run 2. This fixed target programme is
conducted at a center-of-mass energy of $\mathcal{O}$(100 GeV), and has great
potential to bridge the gap of knowledge between SPS and RHIC in the domain of
Quark Gluon Plasma physics. Finally, LHCb successfully participated to its
first Pb-Pb data taking at the end of 2015. First studies show that up to
semi-central Pb-Pb collisions can be successfully analysed to provide unique
measurements in the forward region. In this proceeding, we will present a
selection of LHCb results in pA collisions. We will also give some prospects
for fixed target and Pb-Pb studies.
