The exact cause of bipolar disorder is unknown. Experts believe there are a number of factors that work together to make a person more likely to develop it.
Bipolar disorder is a mental health condition that causes extreme mood swings.
The main symptoms of bipolar disorder are episodes of extreme highs and lows, which can last for several weeks.
Treatments for bipolar disorder include medicines and talking therapies.
Page last reviewed: 14/03/2019
Next review due: 14/03/2022