Police were called to St Martins Drive, Brampton, at 1.11am yesterday (August 4) following concern for the welfare of a man in the street.
The man, 29, of Lancashire, had suffered an injury to his leg, suspected to have been caused by a sharp implement.
He was taken to the Cumberland Infirmary in Carlisle, treated and discharged.
A Cumbria Police spokesman said: “Two people, a woman, 34, of Brampton and a man, 25, of Carlisle were arrested on suspicion of causing grievous bodily harm.
“The woman was released under investigation and the man was bailed pending further inquiries.”
Anyone with information can contact police on 101.