Lauren, 35, was attacked in the early hours of Thursday morning - mere hours after she attended the funeral of her newborn daughter Lorena with her partner Charles Drury, 25.
The couple's baby girl tragically died last month after she was born with her umbilical cord tied around her neck.
Lauren had attended her daughter's funeral with her family and was attacked later that night.
Police were called at 00.37am on Thursday to reports of an altercation and a 25-year-old man was arrested on suspicion of assault. He has since been bailed pending further enquiries, the Met Police said.
Dancing on Ice and Big Brother star Lauren was taken to hospital by her friend after the incident for medical check-ups and returned to hospital today for X-rays and is now being consoled by family and friends.
Lauren Goodger was taken to hospital hours for facial injuries after being assaulted just hours after her baby's funeral (pictured with partner Charles Drury in March)
Devastating: The couple's child died on July 8 and they held the funeral this week
A 25-year-old man was arrested on suspicion of assault in the early hours on Thursday morning
Lauren was already at 'rock bottom', as just five days before her child died on July 8, her ex-boyfriend Jake McLean, 33, died in a car accident in Bodrum, Turkey.
A Metropolitan Police spokesman said on Friday night: 'Police were called at 00.37 hrs on Thursday, August 4 to reports of an altercation.
'Officers attended. At the scene a woman, aged 30s, was found with facial injuries.
'A man was arrested on suspicion of assault.
'He was taken to an east London police station and subsequently bailed pending further inquiries. Inquiries continue.'
A source told The Sun: 'Everyone who knows [Lauren] is so upset - she was already at absolute rock bottom but it's somehow got worse.'
Lauren's rep declined to comment when contacted by MailOnline.
Lauren was said to have been taken to hospital by her friend after the incident for medical check-ups and returned to hospital today for X-rays
Lauren and Charles' romance first came to light in October 2020, they announced they were expecting their first child together just three months after going public
The alleged assault happened just hours after Lauren attended the funeral of her baby daughter Lorena.
Doctors tried in vain to save the 9lb baby but she was born with two knots in her umbilical cord which was tied around her neck.
After she died, her traumatised mother spent hours saying goodbye to her.
The heartbroken star also later revealed she still 'has a bit of a bump' which sometimes tricks her into thinking her baby girl was 'still there'.
She said: 'It's weird. My body feels like it's unsettled, like it's missing a newborn.'
Lauren posted an Instagram message telling how much she loved her daughter, who died minutes after being born on July 8, saying: 'I carried you, I felt you grow. Longed for the day we'd meet. Dreamed of your future. Not only did I know you, I fell in love with you.'
Lauren and Charles have a one-year-old daughter Larose together but split for three weeks last year before reconciling.
Lauren Goodger's ex-boyfriend Jake McLean sadly died in a car accident in Turkey last month
Her ex-boyfriend Jake Mclean, who she dated from 2012 until 2016 and reportedly secretly reconciled with until 2020, died last month when he 'lost control' of the vehicle in Turkey.
After the accident she shared a heartbreaking series of lyrics to her Instagram Stories.
Lauren's post featured a black backdrop while the song's lyrics gradually appeared on the screen.
The lyrics were: 'Search your heart, search your soul. When you find me there, you'll search no more.'