Background. In the past patients have rarely changed doctor. The UK Go
vernment has made such change easier and it appears to be becoming mor
e common. Changing doctor without changing address may be indicative o
f dissatisfaction with the GP service. Previous research in this area
has been largely quantitative. Objective. To identify why patients cha
nge their GP although they have not moved house. Method. Qualitative i
nvestigation of patients' experiences. In depth interviews of 24 patie
nts were conducted to determine why they had left their previous docto
r. Letters describing the process of change were received from a furth
er 17 patients. Analysis was performed using standard qualitative tech
niques. Results. The decision to change was in most cases multi-factor
ial. Interviews yielded more detailed and richer accounts than letters
. For interviewees, rudeness or the attitude of the doctor was the com
monest reason. Overall, 19 different reasons, in four categories, were
identified. The largest single category was accessibility, closely fo
llowed by attitudinal problems. Clinical issues and personal character
istics of the doctor were less common. The majority of those respondin
g by letter gave only one reason, usually distance. Conclusion. Patien
ts change doctor after careful consideration and commonly for interper
sonal reasons. There is usually one critical factor in the decision to
change. Factors may be modifiable or non-modifiable. Critical event a
udit may enable GPs to analyse the reasons why patients leave their li
sts.