Amniocentesis — Diagnostic Use and its Legal Prohibition for Sex Determination

Amniocentesis is a prenatal diagnostic procedure in which a small quantity of the amniotic fluid surrounding the developing foetus is carefully withdrawn through a fine needle, under medical and often ultrasound guidance, generally performed in the second trimester of pregnancy once a sufficient volume of fluid has accumulated. This fluid is not simply water; it contains living cells that have been shed from the developing foetus itself. By culturing these cells and examining their chromosomes, doctors can detect a range of chromosomal abnormalities — Down syndrome, arising from an extra copy of chromosome 21, being the most widely known example — as well as certain inherited metabolic disorders, well before the child is born. Such a diagnosis, made early, allows parents and doctors to plan appropriate medical care and support in advance, rather than being taken entirely by surprise at birth.

A characteristic of chromosome analysis, however, is that it also reveals the sex chromosomes present in the foetal cells, and therefore incidentally establishes the sex of the foetus as a by-product of testing for chromosomal disorders. This incidental capability was, for a period, seriously and deliberately misused in parts of India: some families used amniocentesis (and later, more commonly, ultrasonography) purely to learn the sex of the foetus, and then chose to terminate pregnancies found to be female — a practice known as female foeticide, driven by long-standing and deeply harmful social preferences for male children. The consequences were measurable and serious: several Indian states recorded a visibly skewed child sex ratio, fewer girls being born relative to boys than biology alone would predict, which is recognised as a significant social and public-health problem with long-term implications for society.

In response, the Government of India enacted a specific law, now known as the Pre-Conception and Pre-Natal Diagnostic Techniques (PCPNDT) Act, which makes it a criminal offence to use amniocentesis, ultrasonography or any comparable technique for the purpose of determining the sex of a foetus, and, importantly, also makes it an offence for the examining doctor or diagnostic centre to disclose the sex of the foetus to the pregnant woman, her family, or anyone else, even where the information happens to be known because it was needed for a genuine diagnostic purpose. Genetic counselling centres, laboratories and clinics offering prenatal diagnostic services are required to be registered, to maintain proper records, and are subject to inspection; violation of the Act carries significant penalties, including imprisonment, heavy fines and cancellation of the practitioner's medical registration. …