Why does Delayed Onset Muscle Soreness (DOMS) happen with muscles? Why does it take your muscles 12-24 hours to become sore and feel pain, whereas with injuries the pain is instant and doesn’t buildup slowly over the days

Question

I just went to the gym this morning, and now I’m beginning to feel the pain. Afterwards I felt my muscle being fatigued and weak but there was no soreness/pain. Now 12 hours later I’m begging to feel the pain and by tomorrow morning I will be in a world of pain. Why does this happen?

In: Biology

Answer 1

Source DOMS pain is from inflammation, which is need time for immune response to release specific agent (Prostaglandin E2) so we can feel pain. For usual injury, we feel pain directly from stimulation to nerve pain.