What is Dystocia ?
we try search at google and found some information about Dystocia, According to a source Dystocia mean difficult birth, and though cats sometimes require professional assistance to deliver kittens, or a C-section surgery, the general trend is for them to have very high success rates on their own.

A runt or dead kitten is not unusual to find within a normal litter, so this should not be a cause for concern, though the runt may require some extra care to help it “catch up” to its siblings.

Here’s we found images about Dystocia in a cat

Gallery :

images from here