Fibroids often cause swelling in the lower region of the abdomen due to inflammation. While fibroids are benign and most cause no symptoms at all, they can become a source of serious discomfort and should be investigated by a doctor.
Patient, an online resource for medical consumers in the United Kingdom, explains that at least one in four women develops fibroids at some point in her lifetime. Uterine fibroids are non-cancerous growths that tend to grow inside or immediately outside a woman's uterus. They develop from normal uterus muscle cells that start growing abnormally. Fibroids can cause not only swelling but menstrual discomfort as well.