There are no hard laws specifically regarding male doctors examining female patients. There are laws regarding patient consent for examinations and treatments, though, which protect patients against receiving examinations or treatments to which they did not agree, according to The Free Dictionary by Farlex.
Many male doctors opt to have female nurses stand in on exams they are conducting on female patients' sensitive areas. This is to guard the doctors against being accused of inappropriate conduct while examining the patients. In terms of patients' rights, every patient has the right to consent or have a legal guardian consent to every exam and treatment she is to receive before receiving it, reports The Free Dictionary by Farlex.