Mobile phones work by transmitting and receiving radio frequency microwave radiation. The radio frequency(RF) emitted by mobile phones is stronger than FM radio signal which are known to cause cancer. Thoughresearch and evidence available on the risk of cancer by mobile phones does not provide a clear and directsupport that mobile phones cause cancers. Evidence does not also support an association between exposure toradio frequency and microwave radiation from mobile phones and direct effects on health. It is however clearthat lack of available evidence of cancer as regards the use of mobile phone should not be interpreted as proofof absence of cancer risk, so that excessive use of mobile phones should be taken very seriously and with cautionto prevent cancer.