Most often you can benefit IVF if you have these fertility issues:

1. Blocked or damaged fallopian tubes or similar, where IVF is the only treatment likely to result in pregnancy
2. If the male partner has minor problems with his sperm (For those experiencing more serious problems – ICSI is advised.
3. When IUI or fertility drugs treatments have been unsuccessful
4. At least two years of conception trials resulting in an unknown cause for lack of pregnancy

If you have or experience the above issues you should remember that IVF requires a sequence of steps to be followed. Here you can read more: http://www.placidway.com/article/1167/Fertility-Treatment:-Steps-to-a-Successful-In-Vitro-Fertilization-(IVF)