Objective: This study aimed to investigate the knowledge and attitudes about traditional and complementary medicine practices of some family members over the age of 18 who were admitted to health centers in Ankara. Material and Methods: The cross-sectional descriptive research were conducted with 1,430 people who are 18 years of age who were admitted to some family health centers. Questionnaire form was applied by face to face interview method. The data were presented as median (min, max) and frequency. Chi-square tests were used for statistical analysis. Statistical significance was accepted as p<0.05. Results: The participants who are between the ages of 18-29 are 30.6%; 55.0% are females. 32.6% of participants preferred traditional and complementary medicine practices in the treatment of a health problem. 58.5% of participants who stated that they preferred these treatments in the treatment of a health problem preferred the treatments because they were recommended by friends, neighbors or relatives. The preference of traditional and complementary medicine for the treatment of a health problem is significantly higher among individuals aged 60 years and over, married, having chronic disease and who have poor general health condition. Conclusion: The awareness of these practices are quite common in the society. It is seen that the society get information about this practice from their relatives. It is important that medical doctors and other healthcare professionals have more information about the methods of traditional and complementary medicine, and they are able to give the informations what the society needs.