Playing cell phone regularly will not directly cause leukemia.
The main causes of leukemia are viral infection, immune factors, genetic factors, laboratory factors, physical factors and other reasons, such as smoking, alcoholism, irregular work and rest, exposure to toxic chemicals and so on.
Playing with cell phones has a certain amount of radiation to the human body, but the radiation range is small and the amount of radiation is small. Only long-term exposure to X-ray ionizing radiation, large doses and large areas of exposure may cause DNA mutation and recombination, and then leukemia.
So often play cell phone generally does not cause leukemia, but it is easy to cause vision loss, cervical spondylosis, tenosynovitis and other diseases, so usually to reduce the time to play cell phone, more outdoor sports.