Officers are trying to identify a man in connection with the assault and have released an e-fit of him.
“This appears to have been a random attack on a lone woman,” said Acting Detective Inspector Dean Grafton.
“Thankfully her injuries were minor and she was quickly discharged from hospital.”
The 32-year-old victim was stabbed near a bus stop on Albany Road at around 11pm on Friday, 30 November.
The suspect is described as a white man, aged in his early 30s, with a ginger beard and glasses. He was wearing a dark coloured jacket, trousers and a baseball cap.
Anyone with information is asked to contact officers via 101 quoting reference 8999/30Nov
Tags: Chadwell Heath, Barking and Dagenham