American Association of Colleges of Nursing (AACN) - The Clinical Nurse Leader; American Association of Colleges of Nursing's White Paper on the Education and the Role of the Clinical Nurse Leader; American Association of Managed Care Nurses; American Board of Managed Care Nursing; AONE Institute for Leadership Research & Education
1 Female fleas cannot lay eggs until after their first blood meal and begin to lay eggs within 36-48 hours after that meal. 2  The female flea can lay 2,000 eggs in her lifetime.  The female flea consumes 15 times her own body weight in blood daily.
In 3 weeks, one flea can pass through its entire life cycle and can lay 1000 eggs. In another 3 weeks, those eggs can hatch and lay 1,000 eggs each, so within 6 weeks, it is possible to have a million new fleas.