Menorrhagia is defined as menstruation at regular cycle intervals but with excessive flow and duration and is one of the most common gynecologic complaints in contemporary gynecology. See the image below. Acute menorrhagia requires prompt medical intervention. This is bleeding that will compromise an untreated patient.
Haemophilia A (Factor VIII Deficiency) is a bleeding disorder caused by deficiency of clotting factor VIII. Medical advise about Haemophilia A (Factor VIII Deficiency) Patient Access
This then reacts with factor III and so on to factor XII. In Von Willebrand's Disease, the dog is missing a substance, which helps the platelets form clots and stabilizes Factor VIII in the clotting process. This substance is called 'Von Willebrand's factor.' Because of the deficient clotting of blood, dogs with Von Willebrand's disease have excessive bleeding upon injury. This would be similar to hemophilia in humans. Certain breeds have a higher incidence of vWD than others.