The whitening of the skin under the eye bags may be caused by vitiligo, lichen planus, white furfura and other reasons. 1. Vitiligo: Subcutaneous melanin loss caused by acquired factors can cause skin prickly white patches, which may lead to whitening of the skin under the eye bags. 2. lichen planus: lichen planus, caused by the growth and reproduction of Malassezia, can also cause whitening of the skin, flaking and other symptoms, which can also lead to whitening of the skin under the eye bags. 3. Leukofuria: the cause of the disease is unknown, and is related to the stimulation of a variety of factors, may cause the affected area of the skin with scales, whitening and other symptoms, may also lead to the whitening of the skin under the eye bags. There may be other reasons for the whitening of the skin under the eyes, so you need to go to the regular hospital in time and follow the doctor’s instructions.