125 The prevalence of miscarriage increases with the age of both parents.About 15-25 of recognized pregnancies will end in a miscarriage.

Citation needed An incomplete miscarriage occurs when some products of conception have been passed, but some remains inside the uterus.144 Other diseases are also known to make animals susceptible to miscarriage.

Archived from the original on July 20, 2017.A b c d e Ness RB, Grisso JA, Hirschinger N, Markovic N, Shaw LM, Day NL, Kline J (1999).With no treatment ( watchful waiting most miscarriages (6580) will pass naturally within two to six weeks.