What causes difficult labour in female dogs

1. incorrect fetal position or too large a fetus can lead to a difficult birth. 2. insufficient force during birth or only slight force in the bout of pain, coupled with the lack of exercise in the flat day, the lack of exercise of the tendons and bones will cause a weak bout of difficult birth. 3. pelvic cavity abnormalities: previously had a pelvic fracture, or congenital pelvic stenosis can also lead to a difficult birth.