Jessie J marks a year since her mastectomy in heartfelt post as she thanks her doctor for saving her life after breast cancer battle

Jessie J has shared a heartfelt post as she marked a year since her mastectomy last year. 

The singer, 38, revealed in June 2025 that she had been diagnosed with breast cancer, and underwent a mastectomy as part of her treatment after learning the disease had been caught early.

And last month the star confirmed she is officially cancer free, 11 months after her diagnosis. 

Taking to Instagram on Sunday Jessie shared a video after she came round from the operation as she joked: 'A year ago today I was off my t*ts (literally).

'I had a right side single mastectomy and it’s mad how I didn’t look that rough'.

Thanking her doctor for saving her life, and encouraging people to check their chests, Jessie continued: '12.6.25 changed me forever. Thank you Dr Gui. You are forever a hero to me. 

'And check your breasts and armpits people. It could save your life'.

Last month Jessie shared that she 'sobbed for hours' after she learnt she is cancer free during her annual check up. 

In a video she shared with her followers, the star revealed she was back in hospital for an MRI, and revealed the happy results in the caption of her post.

The video showed Jessie in hospital as she prepared for the MRI scan, and she said: 'So I'm back for my yearly check-up, I'm actually s*****g myself, I'm not gonna lie.

'They told me there was no contrast, but I think there is based on this,' before pointing to the cannula in her arm.

The Price Tag hitmaker continued: 'Gotta go in for my MRI, pretend I'm not claustrophobic, and if you haven't had a breast MRI, you have to lay on your front, put your arms in the air like Superman.

'I might have to have a bigger bucket this time, for this big old b*** but fingers crossed, all good, positive vibes, don't worry about a thing.'

Jessie then revealed in the caption: 'RESULTS ARE IN AND I AM CANCER FREE!!

'I sobbed for hours and then exhaled for the first time in a year.'

Many stars shared their delight for Jessie in the comments, with Andrea McLean writing: 'Ohhh this is WONDERFUL NEWS!!'

Brenda Edwards added: 'This is amazing news, I’m so happy for you!'

Jessie had previously revealed that she felt like breast cancer 'robbed her of time with her son' Sky.

Speaking on Jamie Laing's Great Company podcast, she said: 'Yesterday I sobbed. I feel like I can't be a mum to my son and I miss him. I feel like cancer has robbed me of memories with my boy.

'I have missed stuff with the treatment and stuff moves so fast when you have a toddler. Some days are awful.'

The singer also reflected on some of the lower moments of her cancer battle as she said: 'I had moments where I thought "this is going to go left and I'm going to die".'

She added however: 'But I weirdly kind of enjoy bad things happening to me sometimes as it means I need to grow. I believe bad things happen to me so I can help other people who will then go through it.'