30 sec and recovery Magnitude rarely >40 bpmHead compressionNot associated with fetal hypoxiaLate decelerationBegins at or after the contraction peak and touches baseline only after contraction Uniform onset, i.e. gradual takes> 30 secs and recoveryMay be of low magnitude 10-20 bpmUteroplacental insufficiency, Fetal hypoxia. It is an ominous findingVariable decelerationVariable relationship to contraction Ragged waveform. Abrupt in onset < 30 sec Variable magnitudeUmbilical cord compression M/C type of deceleration">