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

Causes of middle-lower abdominal pain include:

• Abdominal wall strain
• Gastroenteritis
• Intestinal obstruction
• Irritable bowel syndrome
• Ulcerative colitis
• Bladder infection
• Ventral hernia

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

• Uterine cancer
• Uterine fibroids
• Threatened miscarriage
• Pelvic inflammatory disease
• Primary dysmenorrhea
• Endometritis
• Endometriosis

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

• Prostate cancer
• Prostatitis
• Benign prostatic hypertrophy (enlargement)

Causes of right-lower abdominal pain include:

• 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

Causes of left-lower abdominal pain include:

• Appendicitis
• Crohn's disease
• Constipation
• Colon cancer
• Diverticulitis
• Kidney stone
• Inguinal hernia
• Femoral hernia
• Intestinal obstruction
• Volvulus

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

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

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

• Testicular torsion