The BMA has said health boards could improve their HR and recruitment procedures after it was shown that more than 200 doctor posts remained vacant.
The June figure of 209 vacancies is just five fewer than the 214 revealed in January.
The figures were shared in a letter from Welsh health and social services minister Lesley Griffiths to Welsh Liberal Democrats leader Kirsty Williams.
Questioning first minister Carwyn Jones in the Welsh Assembly last week, Ms Williams said it would take the Welsh government 20 years to fill the empty roles at the current rate.
Mr Jones stated the figures represented a net gain, as doctors would still be leaving their posts and moving elsewhere, and that a campaign launched in February this year to recruit more doctors to Wales needed time to work.
BMA Welsh council chair Phil Banfield said: ‘The BMA has highlighted that the problem is not helped by stringent vacancy controls and delays in appointment procedures that are reported to still occur in many health boards in Wales.
‘The junior doctor vacancies are of great concern to the BMA, and we are working with health boards, the deanery and the Welsh government to make Wales a more attractive place in which to live and work.
‘Wales has some terrific training, which is not always appreciated outside of our borders. Wales is a great place to live – even if it is a little wet at the moment.
‘The feeling is that health boards could improve their HR and recruitment procedures to make them more responsive and sensitive to this crisis.’