Obturator Internus Trigger Point Diagram

Also shown are the sphincter ani, levator ani, and coccygeus.
 

Symptom Area: 
Secondary Symptoms: 

Secondary Symptoms

The X's represent the Trigger Points. There is no difference between the black and white X’s. The red shaded area is the referred pain caused by the Trigger Point and the darker red means more people experienced pain in that area.