(BBC News) Doctors’ use of Caesarean section to deliver babies has nearly doubled in 15 years to reach “alarming” proportions in some countries, a study says.

Rates surged from about 16 million births (12%) in 2000 to an estimated 29.7 million (21%) in 2015, the report in the medical journal The Lancet said.

The nation with the highest rate for using the surgery to assist childbirth is the Dominican Republic with 58.1%.

Doctors say in many cases the use of the medical procedure is unjustified.

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