White streaks appearing on the knees are usually seen as obesity striae and may also be related to vitiligo.
1. Obesity lines are due to the local fat increases too fast and too thick, the elastic fibers in the skin caused by pulling, so that the elastic fibers appear fracture, the formation of white stripes on the body surface. Obesity stripes are found on the abdomen, buttocks, and thighs where the amount of fat is high.
2. Vitiligo as an acquired pigmentation deficiency disease, the clinical manifestation of the skin surface of the form of irregular white patches, the surface of the hair can also be transformed into white. Vitiligo lesions can be confined to a certain place, or can be generalized in many parts of the body.
The body white streaks, should be timely consultation, clear cause and then treatment.