The GP profession in England has been brought to "its knees" by a lack of investment, doctors' leaders have claimed.
The comments come after the Royal College of General Practitioners (RCPG) predicted patients will be turned away more than 50 million times by GPs in 2015.
Dr Helen Stokes-Lampard, RCPG honorary treasurer, said:
No GP wants to turn away a single patient - but surgeries are being faced with no choice because they don't have the resources to cope with the increasing number of older people who need complex care, whilst also meeting the needs of families and people of working age.
The profession has been brought to its knees both by a chronic slump in investment and the fact that there are now simply not enough family doctors to go around.
The Government must urgently move to increase investment in general practice to 11% of the NHS budget by 2017 - and recruit 8,000 family doctors.
More top news
Two pilots have been arrested on suspicion of being under the influence of alcohol as they prepared to fly from Scotland to the New York.
Two teenagers have been arrested on suspicion of drugs offences following the death of a 17-year-old youth who collapsed at Leeds Festival.
Theresa May will gather Cabinet ministers together on Wednesday to discuss her plans for Brexit.