The causes of Bloat will vary, depending on which culprit is at hand. If Coccidia is the reason, the rabbit will also rapidly loose wait, as this is a parasitic disease - which is highly contagious! However, regardless of the cause, time is of the essence!!! There is no time to "wait and see what happens either, because in a matter of minutes, your bunny could die - and within a couple days, most all cases do end in death. If the problem is one of the other issues, it is caused by a blockage in the intestinal tract, which may be bacterial or it may be as simple a problem as wool-block. The blockage, however, causes gases to build up in the intestinal tract and stomach. This causes a great deal of pain for the rabbit - which is what causes him to stop moving, eating, and drinking - therefore, the actual cause of death is most likely due to dehydration, especially if there is a presence of mucous or diarrhea.