In people with a low platelet count, prophylactic platelet transfusions do not need to be given prior to procedures that have a low risk of causing bleeding. Low-risk procedures include surgical sites that do not contain many blood vessels e.g. cataract surgery, or minor procedures. The evidence is very uncertain about the effect of platelet transfusions prior to surgery for people with a low platelet count on the all-cause mortality, the number of participants with bleeding events after surgery, serious surgery-related or transfusion-related adverse events.