ART (Assisted Reproductive Technologies) is a term that describes several different methods used to help infertile couples. ART involves removing eggs from a woman's body, mixing them with sperm in the laboratory and putting the embryos bath into a woman's body.

Success rates vary depending on many factors. Something that affects the success rate of ART includes:
- age of the partners,
- reason for infertility,
- clinic,
- type of ART,
- if the egg is fresh or frozen, and
- if the embryo is fresh or frozen.
Various methods are now available to help such couples are - invitro fertilization, gamete intra fallopian transfer, intracytoplasmic sperm injection \& artificial insemination.
(i) Invitro fertilization - Patient's egg \& her partner's sperm are collected \& mixed together in a laboratory to achieve fertilization outside the body. The embryo produced may then be transferred into the female patient.
It is commonly known as test tube baby programme.
(ii) Gamete Intra Fallopian Transfer (GIFT) - A procedure in which eggs are retrieved from a woman, mixed with sperm \& immediately replaced in one or other of the women's fallopian tubes so that they fertilize inside the body (invivo).
(iii) Intra Cytoplasmic Sperm Injection (ICSI)- In this method, sperm \& eggs are retrieved from both the parents. A single sperm is injected directly into an egg, then the fertilized egg is implanted into the woman's uterus.