The foetus which was found dead next to its mother in Paphos on Tuesday evening displayed symptoms of sepsis, state pathologist Nicholas Charalambous announced after a first examination of the body on Wednesday.
A full postmortem is expected to be carried out later in the day.
According to police, foul play has been ruled out as the cause of death of the five-month-old foetus.
The 23-year-old Scottish mother, who said she did not know she was pregnant, said she was suffering from abdominal pain before having a miscarriage in the tourist apartment where she was staying.
A girlfriend with whom she was on holiday at a tourist complex in Chlorakas, Paphos, alerted police and the hospital.
The young woman is being treated at Paphos hospital where she was taken by ambulance.
The on-duty doctor reported she is in good health.