A self-selecting sample of members revealed 80 per cent were in favour of the move. The group last month unsuccessfully took the government to judicial review over the online medical training application service (MTAS) recruitment system for junior doctors.
Spokesman Matt Jameson-Evans told HSJ: 'The profession was in denial of our existence for a few months but we're in a different situation now. We've floated the idea of becoming a union, possibly affiliating with Unison or another organisation, or becoming a formal pressure group.'
No steps will be taken in the next six months, he said.
There are about 40,000 junior doctors in the UK, of whom over 33,000 are currently members of the British Medical Association.
A BMA spokeswoman said: 'They're an independent organisation and can decide on their own future. Whatever they do, it's important that both organisations can work together to make sure we represent the best interests of junior doctors.
'There are other specialist associations, for example for hospital specialist doctors, and we have never had 100 per cent membership.'
The two organisations clashed during the judicial review after Remedy UK attacked a group on which BMA representatives sat, which was set up to investigate the failings of MTAS.