A concerned mum has revealed the strange colour of her baby’s feet, as she tried to uncover the possible cause of his purple tootsies.

Paige Craig uploaded a video of her five-month-old baby, showing his normal face and hand colouring, followed by his purple feet.

“So, see the colour of my child’s face and hands? And look at his feet,” she said on her TikTok video.

“This is no filter. So, what’s happening?”

Paige further explained in the comments that his feet aren’t always this colour, and he was’t cold and his circulation wasn’t being ‘cut off’.

@paigenotcraig Does anyone know if this is normal?!??!?! ???? #5months #babyboy ♬ Funny Song – Cavendish Music

She was offered lots of helpful advice in the comments from other parents and medical professionals.

“That’s usually a sign of poor circulation or a heart issue going on. Could be nothing! I would call his paediatrician just to put your mind at ease,” wrote montanagal101515.

“May have Raynaud’s Syndrome. My feet and hands turn purple due to slight changes in temperature,” replied another.

“Look up primary acrocyanosis! I’m a NICU nurse and we see this a lot in newborns but can hang around for months. doesn’t hurt to call paediatrician!” explained Ali Schmidt.

The mum-of-three has since uploaded a follow-up video, with an update on her baby’s purple feet. She sought a medical opinion, which ruled out the possibility of Raynaud’s syndrome.

“She said she has never seen that in a young kid, especially in a five-month-old so it’s not that which is good.

“Another thing you guys thought was maybe a heart condition. So the first thing she did was grab the pulse off my son’s wrist and then on his foot and they were the exact same strength. And she said if it was a heart condition or something wrong with the heart that those two strengths will be very different.”

The official diagnosis was acrocyanosis, which, according to Healthline, is a condition that causes the small blood vessels in your skin to constrict and turn your feet and hands a blue colour.

@paigenotcraig Purple feet conclusion. Thank you guys for the help and for those I blocked for telling me how dumb I am to ask on TikTok, I was right and he is ok #infantmom #newbornmom ♬ original sound – Paige Craig

The colour comes from the decrease in blood flowing and oxygen moving through the narrowed vessels to your limbs.

“Basically his feet can turn purple or blue but it should go away but six months. She said it’s nothing to worry about and super common.”

However, Paige did encourage her followers to get their own children checked out if they are experiencing something similar, rather than relying on her diagnosis.