Source:http://linkedlifedata.com/resource/umls/id/C0474368
NCI: The discomfort that is experienced by the pregnant mother during the childbirth process as she attempts to give birth.,MSH: Pain associated with OBSTETRIC LABOR in CHILDBIRTH. It is caused primarily by UTERINE CONTRACTION as well as pressure on the CERVIX; BLADDER; and the GASTROINTESTINAL TRACT. Labor pain mostly occurs in the ABDOMEN; the GROIN; and the BACK.