Paris Hilton has hit back at trolls who made vile comments about the size of her baby son’s head.

The socialite, 42, who welcomed Phoenix, nine months, via surrogate, posted sweet snaps of her son’s first trip to New York City to Instagram on Friday – but the comment section was swiftly flooded with cruel remarks.

Fans also took to TikTok to condemn the rude remarks with Hilton responding to a follower who defended her and saying her son is healthy.

She wrote: ‘There are some sick people in this world. My angel is perfectly healthy.

‘And yes, of course he has been to a doctor, he just has a large brain.’

Hilton shares her son with husband Carter Reum, 42.

The images posted by Hilton last week saw her proudly pose with her son on her lap clad in  head-to-toe Burberry fashion with a plaid top, slacks and little shoes.

This comes after Hilton reacted to Britney Spears’ tell-all memoir, which is due out this month.

The blonde told Extra’s Mona Kosar Abdi she is looking forward to the Toxic singer’s highly anticipated tome which has already been leaked here and there.

And Hilton pointed out a surprising parallel in their two books; Paris shared her memoir earlier this year.

In Britney’s The Woman In Me she drops the bombshell that she had an abortion while she was dating Justin Timberlake.

Paris also revealed in her memoir that she had an abortion at 22.

Paris commented, ‘For me, it was extremely healing.

‘It’s very difficult to have to relive and remember things that you don’t want to remember, but talking about it, I think, is really important, just letting it go.

‘And also there’s so many people in the world who’ve been through similar situations so it will make them feel less alone.’

Hilton has seen Spears ‘recently.’ Paris did not say where or when the meet up happened but said the Crossroads actress is just fine.

Hilton then talked about her own hectic world.

Paris added that a typical day in her life as ‘nonstop,’ she added, ‘I don’t think anyone has the same 24 hours in a day that I do.’

As for motherhood, Paris noted that being called a mom is her ‘favorite title of all of them.’

She emphasized, ‘Moms are superheroes. I love being a mom so much.’

Paris and husband Carter Reum went through an IVF journey that led to the birth of their son Phoenix, who was born via surrogate earlier this year.

Hilton gushed about her little man, ‘Phoenix is such an angel. He just turned 9 months old yesterday.

‘He’s getting so tall. He’s about to crawl soon, so it’s just so much fun seeing all these milestones.’

Paris also made sure to show some love for Carter as they are approaching their second wedding anniversary. She said, ‘Carter is so romantic. He’s always coming up with the most amazing surprises.’

Hilton delivered surprises — and bombshell revelations — in her eye-opening, tell-all memoir. Now, she is bringing that story to the small screen in an upcoming series.

Paris didn’t reveal who is playing her, saying, ‘That’s a surprise… I am so excited. I love the girl so much.’

She went on, ‘I’m just really proud of my memoir and that it touched so many people. And now to see it being turned into a TV series is pretty iconic.’