In simple words: Difficult childbirth due to the mother's pelvis being generally too small.

Labor is obstructed because the maternal pelvis is generally too small or contracted to allow passage of the fetus.

Example 1: A pregnant woman at term presents with prolonged labor and lack of fetal descent despite adequate contractions. Pelvic examination reveals a generally contracted pelvis, diagnosed by clinical pelvimetry.Due to cephalopelvic disproportion, a cesarean delivery is performed., A primigravida woman in labor experiences arrest of descent. Imaging studies confirm a generally contracted pelvis as the cause of the obstruction.After careful consideration of risks and benefits, a C-section is chosen to ensure safe delivery., A woman with a history of rickets presents in labor. Her past medical history raises concern for possible pelvic abnormalities. Examination and imaging reveal a generally contracted pelvis. Due to the obstruction,a cesarean delivery is performed.

Documentation should include details of the pelvic examination, including clinical pelvimetry measurements if performed, imaging studies (e.g., X-ray, CT, MRI), progress of labor, and the reason for the diagnosis of obstructed labor due to a generally contracted pelvis.