Medical diagnosis is the process of determining which disease or condition explains a person’s symptoms & signs.
The information required for diagnosis is typically collected from a history & physical examination of the person seeking medical care. A diagnostic procedure may be performed by various healthcare professionals such as a physician, physiotherapist, dentist, podiatrist, optometrist, nurse practitioner, healthcare scientist or physician assistant. Detection of any deviation from what is known to be normal, such as can be described in terms of, anatomy , physiology , pathology , psychology & human homeostasis. 

Knowledge of what is normal & measuring of the patient’s current condition against those norms can assist in determining the patient’s particular departure from homeostasis & the degree of departure, which in turn can assist in quantifying the indication for further diagnostic processing & A complaint expressed by a patient.
Medtech encompasses a wide range of healthcare products & used to treat diseases & medical conditions affecting humans. Medical technology may broadly include medical devices, information technology, biotech, & healthcare services.