The 24-year-old revealed on Tuesday she has been experiencing side effects from the disease, which include panic attacks and depression.
'I want to be proactive and focus on maintaining my health and happiness and have decided that the best way forward is to take some time off,' she said in a statement given to People.
The star, who has been on her Revival World Tour, said in her statement: 'I've discovered that anxiety, panic attacks and depression can be side effects of lupus, which can present their own challenges.'
She went on to add: 'Thank you to all my fans for your support. You know how special you are to me, but I need to face this head on to ensure I am doing everything possible to be my best.'
'I know I am not alone by sharing this, I hope others will be encouraged to address their own issues.'