New International Olympic Committee guidance on transgender inclusion could undermine integrity in sport, say a group of medical experts.
The IOC says it should not be assumed a transgender athlete automatically has an unfair advantage in female events.
Its new framework also changes the policy on requiring transgender women to suppress testosterone levels in order to compete in those events.
A statement questioning the move has been signed by 38 medical experts, BBC reports.
They are linked to the International Federation of Sports Medicine and European Federation of Sports Medicine Associations.
According to BBC : They say the guidance has been drafted mainly from a human rights perspective with little consideration of medical and scientific issues.