Early Fetal Resorption in Bitches (Female Dogs)

Early fetal resorption in bitches is the absorption of one or more embryos or fetuses during early pregnancy, typically before they are detectable via ultrasound.

Early fetal resorption in bitches usually appears to both owner and veterinarian as primary infertility because early pregnancy is so difficult to confirm. Pregnancy cannot be recognized by palpation until after 21 days of gestation, and then the diagnosis is subjective.

Clinical Signs

Early fetal resorption usually shows no obvious clinical signs; the animal may appear normal or may show slight vaginal discharge, and pregnancy signs fail to develop.

Diagnosis

Early fetal resorption is diagnosed based on breeding history, absence of pregnancy signs, serial ultrasonography showing embryo loss, hormonal assays like progesterone measurement, and testing for infectious causes such as brucellosis.

Radiographically, pregnancy cannot be confirmed until 42 to 45 days of gestation.

The earliest that pregnancy can be identified is approximately 16 days after first breeding, using ultrasonography. This tool has been helpful in recognizing early fetal resorption.

Treatment

Early fetal resorption suggests an endometrial disorder failure of corpora lutea to support pregnancy infectious disease such as brucellosis, fetal defects or some less common disorder.

There is no specific treatment for early fetal resorption. Management focuses on identifying and correcting any underlying causes, such as treating infections, managing hormonal deficiencies, and improving overall reproductive health. Supportive care, proper nutrition, and avoiding stress are important.