Its been 6months after c section now suddenly i feel burning sensation in scar area, does heavy exercise can be the cause?

Scar Healing: Everybody heals differently and most scars fade over time. While most scars will be relatively unnoticeable at 6 months some will deposit more scar tissue (keloid) that may result in a raised, discolored, or firm area. Use sun screen and give it time. If you still feel like it’s a problem then consult a Dermatologist do see what options may be available.