IVF and test-tube babies are two different names used for the same procedure. Test tube baby is a non-medical term for what medically is termed as IVF. The term ‘test tube’ came into consideration when the fertilization was done in a test tube instead of Petri dishes that are used in modern-day IVF treatment. The entire treatment procedure remains the same in both the conditions and hence the names can be interchangeably used.