Metropolitan Police were called at 9.12pm on Saturday (March 23) to reports of a disturbance in South Grove.
Officers were said to have arrived within five minutes of the call but found no victim or suspect at the scene.
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At around the same time, Met Police were informed about a man who went to a local hospital with a stab injury.
His condition was later assessed as not life-threatening or life-changing, the force said.
Officers believe the man sustained the injury in South Grove and have launched a probe into the incident.
No arrests have been made at this early stage.
Anyone with information on the stabbing can call the police on 101 quoting CAD 6956/23Mar.
https://www.guardian-series.co.uk/news/24206940.man-suffers-injury-south-grove-walthamstow-stabbing/