The 17-year-old New Zealand native was set to play 8 dates across 6 Australian cities starting this week.
But following two weekend performances in the desert heat at Coachella in California, and a busy few months prior, it has been reported that her parents intervened and said she had to take a break.
Lorde performs at the BRITs 2014
Posting on Twitter, the singer said: "I have had to postpone my Australian shows because of a nasty chest infection and general ill health," before continuing: "I am so so gutted to have to do this but my parents and my team stepped in telling me I needed a break."
In an official statement it was reported that Lorde will be returning to New Zealand for "immediate rest and recuperation in order to regain complete health and continue touring for the rest of the year."
She also added: "It breaks my heart to have to postpone these shows as the band and I absolutely love playing to Australian crowds, and it was not a decision we made lightly."
Her statement went on to say: "I know I need to focus on getting better in order to perform at my best. We'll be with you as soon as we can, Aussies."
Lorde DJs with Ellie Goulding and Katy Perry
Since breaking out late in 2013, Lorde has been globe-trotting, playing awards ceremonies and festivals including the Grammys and Coachella.
In Australia, Lorde ended 2013 with three songs in the top 15 of broadcaster Triple J’s public-voted Hottest 100 poll and her debut album is double-platinum.
As well as a worldwide fan base Lorde, real name Ella Yelich-O’Connor, has gained several new famous friends, including country star Taylor Swift.
The Royals singer also DJ’d at the Brits after-party with Ellie Goulding and Katy Perry after performing her hit single and winning International Female Solo Artist.