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.
Diabetes mellitus is one of the most common hormonal diseases affecting dogs. Most affected dogs have Type 1 diabetes, meaning that their condition is not caused by a poor diet or being overweight, but usually by an abnormal autoimmune response that destroys the pancreatic cells responsible for manufacturing insulin.