Three of the 1,500 doctors surveyed by the journal Doctor said they were so distressed by the advances of sex pest patients that they had resigned. Two had left general practice altogether.
In 3 per cent of cases, it emerged that the harassment was by a colleague.
The survey found the most common forms of harassment were receiving unwelcome attention, explicit letters, inappropriate requests for examinations or visits and unwanted gifts.
Both male and female GPs have been harassed in this way, although women were slightly more at risk, the survey found.