It is of utmost importance to make sure the scab is undisturbed and falls off naturally. Melanoma especially, sends roots down into the tissue. If done correctly the roots will come out, but if the scab is broken off prematuraly the roots will remain to grow new cancers.
One of our posters here has had problems with premature loss of the eschar, requiring her to treat several times.
I suspect these roots are more of a problem when the melanoma is deep in tissues, like a stage 3 or 4, being deeper lodged, more susceptible to breakage. Care needs to be taken with dressing changes and protection of the site from bumping it.
Some melanomas are not visible from the surface at all. So when these types are removed say from a liver or other deep internal areas much caution is required. All activity that could jeopardize the proceedure should be held.
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