Bipolar disorder is a mental illness that can cause a sufferer to experience bouts of deep depression interspersed with periods of mania or hypomania. Changes between the two extreme moods can be greatly distressing to the sufferer and can interfere with daily life. Bipolar disorder is a serious and often dangerous condition that should be treated professionally and medically. Unfortunately, when a person is in a stage of mania they may not believe they are unwell. It is therefore important for both the sufferer and those around them to be aware of some of the basic aspects of bipolar disorder. This guide provides information for those wishing to learn more about it and will outline some of the symptoms. It will also highlight potential causes, current statistics and available treatments. If you do suspect that you have bipolar disorder then we would encourage you to speak to your GP or other medical professional as soon as possible.