Friends who are interested in medical technology, today I will talk to you in depth about the medical Wood’s lamp, a magical diagnostic tool. 

Medical Wood's lamp is increasingly used in the field of dermatology. It is like the "third eye" of dermatologists and can help doctors accurately diagnose various skin diseases. In a dark room environment, UV light of a specific wavelength emitted by a Wood lamp is irradiated on the skin, and different skin diseases will show unique colors and fluorescence reactions. For example, the skin lesions of patients with vitiligo will show bright white fluorescence under Wood's lamp, which is in sharp contrast with the surrounding normal skin and has clear boundaries. This is of extremely important significance for the early diagnosis and condition monitoring of vitiligo. It can promptly detect hidden white spots that are difficult to detect with the naked eye and provide a strong basis for subsequent treatment. 

In addition to vitiligo, Wood's lamp is also very helpful in the diagnosis of other pigmentary dermatoses. Amelanocytic nevus, tinea versicolor, psoriasis, etc. will all have different manifestations under the illumination of Wood's lamp. For example, the skin lesions of patients with tinea versicolor will show yellow or brown fluorescence, helping doctors to quickly and accurately judge the condition. 

However, the examination results of the medical Wood's lamp are not absolute and need to be comprehensively judged based on the patient's medical history, clinical manifestations and other related examinations. Moreover, when using Wood's lamp, the operator needs to strictly follow the specifications to ensure the accuracy of the inspection results. At the same time, patients should also follow the doctor's instructions when undergoing examinations to avoid improper operations that may affect the examination results. 

In short, as an important diagnostic tool for skin diseases, the medical Wood's lamp provides a powerful diagnostic basis for dermatologists and also brings good news to the majority of patients with skin diseases. It is believed that with the continuous development of medical technology, the application of Wood's lamp will become more extensive and in-depth, playing a greater role in the diagnosis and treatment of skin diseases.