Till date, the exact causes of fibroadenoma is still unknown. The common associated factors are listed below –

  • Imbalance of Estrogen hormone
  • Intake of OCP or Oral Contraceptive Pills used by females to prevent pregnancy
  • Due to menstrual disorders, in some cases HRT or Hormonal Replacement Therapy is administered. HRT can also cause Fibroadenoma of Breasts