Hand-Arm Vibration Syndrome or HAVS is a condition that has the potential to affect any worker who uses powered hand-held or hand-guided or fed tools as a major part of their job.
Mae rheolaeth drwy orfodaeth yn weithred neu'n batrwm o weithredoedd o ymosod, bygythiadau, bychanu a dychrynu neu gam-drin arall a ddefnyddir i niweidio, cosbi neu ddychryn y dioddefwr.