You read a lot of the stories, and maybe your heart broke enough to scar over, but you gained the perspective to resume some kind of normality.

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The stent, a metal-mesh tube, keeps the artery from closing up again after the balloon is removed, but scar tissue can form over the metal, re-blocking the artery.

FORBES

To remove them, doctors slide sheaths over the wires and scrape the scar tissue away, freeing the lead.

WSJ: Agonizing Choices for Heart Patients

Another common type of massage, so-called deep tissue, tends to be more targeted to problem muscles and includes techniques such as acupressure, trigger-point work (which focuses on little knots of muscle) and "deep transverse friction" where the therapist moves back and forth over muscle fibers to break up scar tissue.

WSJ: Don't Call It Pampering: Massage Wants to Be Medicine

But over time it produces chronic inflammation and scar tissue.

FORBES: Stealth Killer

Those who are most susceptible to the disease have over-zealous repair mechanisms that replace too much liver with useless scar tissue.

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His nose had been broken and his mouth was cut at one corner and the line of the scar across the upper lip and lower jaw showed through the growth of beard over his face.

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