Pyometria is a potentially life-threatening abscess of the uterus. A vet should be seen immediately if you suspect this condition. The infection may either drain from the uterus or collect there, causing painful enlargement. A hysterectomy guarantees full recovery. For a potential brood bitch, there is a course of treatment with prostaglandin, which can sometimes eliminate the infection. Since, there is always the possibility of recurrence, the bitch should be bred on her next heat if a hysterectomy is not performed.