Nonstructural conditions are unrelated to structures in the female reproductive tract.
Bleeding disorders such as von Willebrand disease or a platelet disorder. A woman with one of these disorders may notice that she bleeds easily in other areas of her body as well. These disorders can usually be diagnosed with bloodwork. Treatment may include hormonal birth control to manage heavy menstrual bleeding, or certain types of medication.
Conditions that cause ovulatory disfunction, including medical conditions such as liver or kidney disease, or significant weight changes (e.g., weight loss such as from anorexia). Many of these conditions have other symptoms that can be identified with a good medical history or physical exam, and often will be diagnosed with bloodwork. Treatment may include medications, or lifestyle changes such as diet and exercise.
Medication or medically-induced causes, such as hormonal contraception or other hormonal medications, certain psychiatric medications, anti-coagulant medications, herbal supplements, or uterine trauma from a medical procedure. These conditions may be diagnosed with history and exam, and treatment may include stopping, starting, or adjusting medications.
Other conditions such as arteriovenous malformations in the uterus.
