Psychogenic alopecia is judged mainly by the clinical manifestations of the patient. Patients usually appear after emotional stress, poor rest and other conditions. The main manifestation is the appearance of round or oval hair loss patches on the patient’s scalp. If the hair around the patches is gently pulled by hand, a part of the hair will be pulled down, which is called hair pulling test. If it is not easy to judge, it can be diagnosed by hair microscopy, which can clearly see the hair follicles under the magnification of dozens of times, so as to identify other diseases. If it is not good to judge, a small pathological biopsy can be taken to help the diagnosis, which requires looking at the patient’s hair follicles under a microscope, a method that is invasive and generally less often taken by patients. Through the above methods, psychogenic alopecia is better judged, but you need to consult a professional physician for details.