What is the rate of muscle healing?

• A. 7 days
• B. 14 days
• C. 21 days
• D. 28 days

Answer: (B)

Muscle healing occurs in stages—inflammation immediately after injury, followed by regeneration where new muscle fibers form, and then remodeling to regain strength. The regenerative phase starts early and becomes evident around the second week; by about two weeks you’ll see ongoing repair with new fibers and initial functional improvement. That makes two weeks the best estimate for the rate of muscle healing among common clinical timeframes. A week after injury is still largely inflammatory with limited tissue regeneration, while three to four weeks or more reflect continued remodeling and maturation rather than the initial rate of healing. In practice, expect Milestone repair around two weeks, with full strength often taking longer.