This article describes a diagnostic approach and the medical and surgical s
tabilization of patients with hemoperitoneum. Emphasis is placed on animals
with neoplastic and traumatic disease. Because there is little information
in the veterinary literature regarding treatment outcomes for neoplastic o
r traumatic hemoperitoneum in cats or dogs, a specific treatment protocol f
or each scenario cannot be recommended. The therapeutic guidelines containe
d in this article are based on the opinions and experience of the authors.