The most common is spontaneous purpura, this kind of purpura is generally unexplained, the blood system examination is normal, generally can recover by itself, do not need special treatment, there is no effect on the body. 2, traumatic purpura, children, especially girls, due to capillary fragility is relatively large, when there is a fall collision especially The actual bruises are easy to appear. This is the first time I’ve ever seen a woman with a baby in my life. This kind of purpura can also appear as bruises on the legs. It is mainly in the form of bleeding spots, which can appear on the face or other parts of the body, not simply limited to both lower limbs and buttocks. The main reason for this disease is that the anti-platelet antibodies are produced in your own body, which can lead to the destruction of the platelets themselves, thus leading to the reduction of platelets, which is also necessary to go to the hospital for treatment in time.