The difference between the symptoms and signs of a disease is that symptoms it is the reports, the complaints, what the patient tells the doctor during the consultation. This is what the doctor listens to or asks the patient during the medical interview (anamnesis). It is a subjective complaint, what the person is feeling or feeling.
The signals of a disease are the images, sounds and other objective data that the doctor sees, listens to, hears (with the aid of a stethoscope) and feels when performing the physical examination. It is what the doctor obtains from his direct observation.
Signs and symptoms of a disease are distinct things because they depend on the perspective of who is telling the story or assessing the situation in the doctor-patient relationship.
