Iggy Azalea has revealed she has been diagnosed with a joint disorder.
The Fancy singer admitted she has TMJ (temporomandibular joint dysfunction) - a condition which affects and causes pain in the jaw - in a New Year's Twitter message.
The Australian rapper wrote: "Last month I was diagnosed with TMJ which isn't the best.
"I'm gonna make more of an effort to take care of myself in 2015, stay away from all the drama & hopefully not have any flair ups [sic]. I don't think western medicine all the way acknowledges what a huge toll mental stress takes on our bodies. But I do believe it is a factor."
The 24-year-old star added: "Anyhow I don't think it will ever prevent me from doing anything I want to but it has made me realize it's important to look after yourself."
Iggy - who collaborated with Ariana Grande on Problem - also confirmed she would start working on her second album, the follow-up to 2014's The New Classic.
"I'm back to work on my second album next week... Anxious to get going on it. The excited kind of anxious," she posted.