Definition of primary and secondary amenorrhea. Amenorrhea is the medical term for the absence of menstrual periods, either on a permanent or temporary basis. Amenorrhea can be classified as primary or secondary.
Most inherited bleeding disorders are the result of abnormal platelet function or a deficiency in one or more of the factors involved in the blood clotting system. The most serious and common inherited coagulation disorders in dogs are hemophilia(deficiency of factor VIII or IX) and von Willebrand's disease (lack of von Willebrand factor). Other coagulation disorders are discussed here.
Seizures, fits or convulsions are a relatively common disorder in companion animals. More. than one in one hundred people have a seizure disorder and the incidence of seizures in dogs it. is probably just as high (estimated at 1-5% of all dogs). A seizure is a transitory disturbance of. brain function.