"Pyometra" is the life-threatening infection of the uterus which generally occurs in middle-aged to older female dogs in the six weeks following heat. The hormone "progesterone," which primes the uterus for potential pregnancy, does so by causing proliferation of the blood-filled uterine lining and suppression of uterine immune function. It is thus easy during heat for bacteria in the vagina to ascend to the uterus to cause infection. The uterus with pyometra swells dramatically and is filled with pus, bacteria, dying tissue, and toxins. Without treatment, the pet is expected to die. Despite her serious medical state, she must be spayed quickly if her life is to be saved.
THIS IS AN EXTREMELY COMMON DISEASE
OF OLDER UNSPAYED FEMALE DOGS!
PYOMETRA IS NOT SOMETHING WHICH "MIGHT" HAPPEN;
CONSIDER THAT IT PROBABLY WILL HAPPEN.
The older unspayed female dog has an irregular heat cycle. There is no end of cycling comparable to human menopause. If you still decide against spaying, be very familiar with the signs of pyometra. (These include loss of appetite, lethargy, vomiting, excessive thirst, marked vaginal discharge
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