Dog Surgical Diseases – Pseudopregnancy
Pseudopregnancy refers to a series of unique changes in pregnant female dogs when the female dog is not mated or conceived after mating after estrus. Although pseudopregnancy does not cause diseases of the reproductive tract, it will affect the normal reproduction of female dogs.
It is generally believed that it may be related to the prolonged activity of the corpus luteum. After estrus and ovulation, a corpus luteum is formed in the ovary regardless of pregnancy. Progesterone secreted by the corpus luteum is a hormone that maintains pregnancy and causes pregnancy changes. If the corpus luteum lasts longer (sometimes up to 100 days). And when the amount of progesterone secreted is the same as that of a pregnant dog, it will cause some female dogs to appear pregnancy-like symptoms.
Pseudopregnancy usually occurs during the 2 to 3 months after estrus. The bitch has an enlarged abdomen, palpation of the abdominal wall can feel the growth and thickening of the uterus. The mammary glands are developed and swollen and can produce milk. The bitch is irritable and looks for a nest in the dark. Like drinking water. Poor appetite, and sometimes symptoms such as vomiting and polyuria may occur. According to the breeding history, abdominal palpation, X-ray photography and ultrasound diagnosis. The diagnosis can be confirmed by excluding a real pregnancy.
Mild patients can heal on their own without treatment. Severe patients can use hormone therapy, such as methyl testosterone. The daily dosage for dog oral administration is 10 mg; the dosage of diethylstilbestrol, intramuscular injection or oral administration, is 0.2-0.5 mg/ time. For bitches with frequent illnesses, the occurrence of false pregnancy is fundamentally eliminated.