Singer Avril Lavigne has opened up about her battle with Lyme disease.

The Canadian star, who was diagnosed with the bacterial infection last year, shared an update with fans from the doctor's office as she continued her treatment.

Sharing a picture showing 13 vials of blood, she wrote: "On my way to good health #TakingCareOfMyself #F***LymeDisease."

The Complicated singer seemed in good spirits in a second picture which showed her sat on a doctor's chair dressed in a pair of jeans and a baseball cap and smiling.

She added: "This journey continues ..... Just reach up, don't give up until you've touch the sky ..... We were all meant to fly."

Avril has been vocal about her battle and recently broke down in tears as she described her long road to recovery.

The Canadian singer shared her struggle on Good Morning America for the first time on-camera, and revealed how she considers her new opportunity as the chance to start over.

"This is my second shot at life," Avril cried as she spoke to ABC’s Jesse Palmer.

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In the summer of 2014 Avril found herself bedridden for five months.

Doctors and health professionals struggled to work out what was wrong – initially mistaking her symptoms with Chronic fatigue syndrome.

"I'm about halfway through my treatment. I'm doing a lot better," she said.

"Seeing a lot of progress... I'm just really grateful to know that I will make [a] 100 percent recovery."

(Image: WENN)

It's not the only heartbreak Avril has recently had to endure.

Earlier this month she announced her split from husband Nickelback frontman Chad Kroeger after two years of marriage.

"It is with heavy hearts that Chad and I announce our separation," the hitmaker wrote in an emotional statement.

"Through not only the marriage, but the music as well, we've created many unforgettable moments. We are still, and forever will be, the best of friends, and will always care deeply for each other. To all our family, friends and fans, thank you sincerely for the support."