To examine (medically); to check a patient’s condition (to diagnose or inspect).
医者が傷口を診て、消毒してくれた。
The doctor examined the wound and disinfected it.
熱が続くので病院で診てもらったほうがいい。
Since the fever continues, you should have it checked at a hospital.
医師は患者を丁寧に診て、薬を処方した。
The physician examined the patient carefully and prescribed medicine.