OBJECTIVE: The purpose of this study was to evaluate the prevalence of labor dystocia and its association with interpregnancy interval. STUDY DESIGN: We linked the birth data for Michigan infants ...

The catecholamine-mediated maternal stress response to the psychological and physical demands of labor has been implicated as a potential factor in the development of dystocia in nulliparas.

The woman simply did not think a multiple pregnancy would ever occur when she gave her approval. In an online search for more information, she learned about a procedure called multifetal pregnancy ...

These factors may also have contributed to the development of a vesical calculus large enough in size to interfere with normal labor ... We report a dystocia in a day-23 timed pregnant Sprague ...