Many conditions can cause lower abdominal pain. Causes vary with the location of the pain, as well as the gender and age of the individual.

Causes of right-lower abdominal pain include:

• Abdominal wall muscle strain
• Appendicitis
• Crohn's disease
• Ileus
• Mesenteric lymphadenitis
• Kidney stone
• Inguinal hernia
• Femoral hernia
• Intestinal obstruction
• Volvulus

Additional causes of right-lower abdominal pain in females include:

• Ovarian cancer
• Ovarian torsion
• Tubal pregnancy
• Pelvic inflammatory disease
• Uterine fibroids

Additional causes of right-lower abdominal pain in males include:

• Testicular torsion