run in the familyif something such as a quality, disease, or skill runs in the family, many people in that family have it
 [TahlilGaran] Dictionary of Contemporary English ▲
 run in the family{v. phr.} To be a common family characteristic; be learned or inherited from your family. 
 A great interest in gardening runs in his family.
 A great interest in gardening runs in his family.  Red hair runs in the family.
 Red hair runs in the family.  [TahlilGaran] English Idioms Dictionary ▲