There is no best way to get rid of dark knees, it may be due to long-term knee friction or inflammation in the knee area resulting in pigmentation. Generally, it can be treated by medication, laser surgery and other methods. 1. Long-term knee friction: long-term knee friction can lead to black knees, you can do protective measures in the knee, such as wearing knee pads, at the same time should pay attention to reduce friction, try to protect the knee joint. Hydroquinone cream can be applied to this area for treatment. The use of medication should be under the guidance of a doctor. 2. Pigmentation: The recovery of knee inflammation will lead to melanin precipitation, which can be removed by laser surgery. Laser surgery adopts a powerful photothermal effect produced by the laser instantly, which can reach the dermis layer of the skin, effectively decompose the melanin cells quickly and stimulate the production of collagen, which can better improve the pigmentation caused by inflammation.