System with disease diagnosis and skin age measurement functions and handpiece used therewith

A system comprising:

• a laser irradiation device configured to generate a laser and project the laser onto body tissue;
• a probe configured to collect light which is generated when the laser is projected onto the body tissue;
• and
• an analysis unit configured to diagnose a disease by analyzing a spectrum of the light collected by the probe,
• wherein the analysis unit comprises:
• a spectrometer configured to measure the spectrum of the light collected by the probe;
• a first storage configured to store a disease diagnose reference spectrum data DB;
• and
• a disease diagnosis unit configured to determine whether there is a disease in the body tissue based on the spectrum measured by the spectrometer with reference to the disease diagnosis reference spectrum data DB, and
• wherein the probe is detachably connected to the laser irradiation device.