“Stretching after a workout prevents next-day soreness.”
Strong confidence. A Cochrane review found consistent results across 12 randomized or quasi-randomized studies: stretching before, after, or both did not reduce delayed-onset soreness by a clinically important amount.
Stretching after exercise may feel pleasant and can address flexibility goals, but it does not meaningfully prevent next-day delayed-onset muscle soreness.
Soreness is influenced by unfamiliar load, eccentric exercise, volume and recovery. A gradual training progression matters more than a post-workout stretching ritual.
Safety note: Sharp pain, major swelling, weakness or loss of function is not typical routine soreness. Severe muscle pain with dark urine after hard exercise can signal rhabdomyolysis and needs urgent care.
Talk to a healthcare professional if: Seek care for severe or worsening pain, marked swelling, inability to use a limb, dark urine, fever or symptoms that do not improve as expected.
Keep stretching if it improves comfort or movement, but do not use soreness as proof that you failed to stretch or that a workout was effective.
Progress training gradually, allow recovery and use gentle movement as tolerated. Stretch without bouncing or forcing a painful range.
Similar claims on Stretching & mobility
Stretch if you enjoy it or need the mobility, but don't feel guilty skipping it as 'injury prevention' - it doesn't really do that. A few minutes of moving warm-up before exercise does more.