How to Feel Ischial Spines?

The ischial spines can be palpated at about a finger-length into the vagina, at 4 and 8 o'clock. They are felt as bony prominences. It can be uncomfortable for the woman when you press on the spines.

Is above or below ischial spines?

Essentially, the (-) stations are when the bony presenting part is above the ischial spines, 0 is when the bony presenting part is AT the maternal ischial spines, and the (+) stations are when the bony presenting part is below the ischial spines.

Where is the ischial spine located?

Anatomical terms of bone

The ischial spine is part of the posterior border of the body of the ischium bone of the pelvis. It is a thin and pointed triangular eminence, more or less elongated in different subjects.