Among twenty-three types of physicians, dermatologists rate sixth lowest in malpractice risk. With dermatology, the risk of a suit is general; no one doctor or type of dermatologic practice has been shown to bear unusual risk--everyone is susceptible. However, dermatologist who give x-ray therapy or limit their work to cosmetic procedures rate higher. Patients sue because of facial burns or scars, negligent diagnosis, drug reaction, falls in the office, wart removal, and treatment that exceeds the patient's desire at the moment. Care must be exercised in the use of problem drugs such as antineoplastic agents, corticosteroids, oral contraceptives, sulfones, vitamin A acid, liquid nitrogen, cantharidin, podophyllin, and fluorescent dyes. Dermatologists are urged to obtain consultation for the benefit of patient and doctor, to maintain good relations with fellow physicians, and to avoid inappropriate criticism of other physicians. Lengthy lists of "do's" and "don'ts" in patient care are included, and some possible changes in the malpractice situation are listed.