Causes of lower abdominal pain in women include normal, benign conditions such as gas, as well as more serious conditions such as endometriosis and pelvic inflammatory disease. Pain accompanied by nausea, yellow skin, vomiting, bloody stool or abdominal swelling may indicate a serious medical condition, according to Mayo Clinic.
The most common symptom of endometriosis is pain, reports the Office on Women's Health. Other symptoms may include heavy periods and infertility.
Pelvic inflammatory disease is an infection of a woman's reproductive system. In additional to lower abdominal pain, symptoms of this condition may include bleeding between periods, fever, unusual vaginal discharge and pain or bleeding during intercourse, states the Centers for Disease Control and Prevention.