Obturator sign

A right lower quadrant or suprapubic pain elicited by passive flexion and internal rotation of the hip, indicating irritation of the obturator internus muscle due to an inflammatory process involving adjacent pelvic structures.

Causes

• Appendicitis

• Gynecological causes

  • Pelvic inflammatory disease (PID)

  • Tubo-ovarian abscess

  • Ovarian torsion

  • Ruptured or infected ovarian cysts

  • Endometriosis involving pelvic structures

• Pelvic abscess

• Pelvic tumors or masses causing local irritation

• Hip or obturator muscle pathology (rare)