Table 1.

Classification of dystocias (n = 70)

Cause of the dystocia	Number of whelpings	Dystocias (%)
Maternal dystocias	48	68.6
Primary uterine inertia	42	60.0
Incomplete uterine inertia	33	47.1
Complete uterine inertia	8	11.4
Non-classifiable primary uterine inertia	1	1.4
Obstruction of the uterine horn (the same bitch twice)	2	2.9
Uterine horn torsion	1	1.4
Placental separation/green discharge	1	1.4
Internal haemorrhage	1	1.4
Bitch accumulating too much body fluid before parturition	1	1.4
Fetal causes	20	28.6
Malposition	18	25.7
Fetal oversize	2	2.9
Malformation (fetal duplication)	1	1.4
Unknown cause	2	2.9
Obstruction of pup, for unknown reasons	2	2.9