The white pain and itching around the anus may be caused by perianal eczema, hemorrhoids, anal fistula and other reasons. 1. Perianal eczema: because the perianal area is in a humid environment for a long time as well as its own endocrine dysfunction, etc., can lead to the occurrence of perianal eczema. It can lead to pimples and ulcers around the anus, which will cause obvious itching symptoms around the anus. At the same time, it can also lead to oozing and whitening on the perianal skin. 2. hemorrhoids: for example, when there are external hemorrhoids, in addition to causing the anus to appear wet and unclean, itching discomfort symptoms, repeated scratching and stimulation, can also lead to perianal skin whitening. 3. anal fistula: when there is anal fistula formation, the external mouth can often flow pus, mucus secretion, which will produce stimulation of the perianal skin, resulting in itching symptoms. At the same time, because the perianal area is in a wet state for a long time, thus can lead to perianal skin whitening. When the symptoms of white itching around the anus, it is recommended to go to the hospital as soon as possible, to clarify the cause of the disease, under the guidance of the doctor for targeted treatment, so as not to delay the condition.