The procedure was part of Pouncey's normal rehab process, the source said.
Pouncey had two surgeries in the past two years after suffering major hip injuries in back-to-back seasons. He missed 13 games in that span as a result. The stem cell procedure was first reported by the The Palm Beach Post.
Pictures on social media surfaced Monday of Pouncey using a crutch while attending the funeral of former college teammate Aaron Hernandez.
Dolphins coach Adam Gase said recently at the NFL owners meetings that Pouncey will be ready for Week 1 of the regular season. The team will be extra cautious with Pouncey with the goal of getting him to play a full season.
Miami went 10-6 last season and made the playoffs for the first time since 2008 despite Pouncey playing just five games.