The human foetus feels no pain before 24 weeks, according to a major review of scientific evidence published today. The connections in the foetal brain are not fully formed in that time, nor is the foetus conscious, according to the Royal College of Obstetricians and Gynaecologists.
The findings of two reports commissioned by the Department of Health strike a blow to those seeking to reduce the upper time limit for having an abortion, currently at 24 weeks.
The studies suggest that late abortions, permitted for serious abnormalities or risks to a woman's health, do not result in foetal suffering because of increasing evidence that the chemical environment in the uterus induces "a continuous sleep-like unconsciousness or sedation".
The review of existing evidence, as well as guidance to health professionals and information for mothers, was instigated on the recommendation of the Commons health select committee two years ago. Efforts in the Commons to reduce abortion limits to 22 or 20 weeks were defeated in 2008. The reports will hamper campaigners' efforts for an early return to the topic, despite David Cameron having suggested before the election that that might happen.
The report on pain perception says: "It was apparent that connections from the periphery to the cortex are not intact before 24 weeks of gestation and, as most neuroscientists believe that the cortex is necessary for pain perception, it can be concluded that the foetus cannot experience pain in any sense prior to this gestation."
Even after 24 weeks, "it is difficult to say that the foetus experiences pain because this, like all other experiences, develops post-natally along with memory and other learned behaviours".
Human foetus feels no pain before 24 weeks, study says
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