The stabbing happened on the 1100 block of New Jersey Avenue NW about 2 a.m. today.
The woman, who has a child in common with the man, was fighting with him in an apartment about two blocks southwest of the New York Avenue Playground, police said. She then grabbed a kitchen knife and stabbed the man repeatedly in his right arm.
He was brought to a local hospital with a “severe laceration” on his arm, according to a police report.
Police arrested 24-year-old Tajiana Skinner of Northwest D.C. for assault with a dangerous weapon, according to authorities. Information on her lawyer wasn’t immediately available.
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