dont think it will leave hypertrophic scarring its possibly but very rare, probably the skin will heal without any scarring dont worry
and keep the wound moist

Currently there is a large swollen circular bump there and bruising. I don't want any sort of bump there after it heals. Because I believe subcision is largely a dermal injury I am worried that the area will become a scar due to dermal damage.

There is no external wound though as it was done by needles.

Really don't know what to do, have never encountered anyone getting subcision on perfect skin areas before.

Pics? It could be a nodule. Those tend to go away with time.

But isn't the point of subcision to raise the scar. If you do it on normal skin don't you get a raised lump since the skin was originally flat?

There is that possibility. Subcision is meant to create a layer of scar tissue underneath a pittedscar as the blood pools underneath it in a small local hematoma. Over the weeks, that collection becomesscar tissue that fills the space in the scar. If it does become a raised scar you can get cortisone injections to flatten it. It's hard to say at this point how it will heal. Sounds like he was overly aggressive.

Avoid anymore trauma to the area and then reassess. Sorry this happened to you.

3 hours ago, blahblah82 said:

There is that possibility. Subcision is meant to create a layer of scar tissue underneath a pittedscar as the blood pools underneath it in a small local hematoma. Over the weeks, that collection becomesscar tissue that fills the space in the scar. If it does become a raised scar you can get cortisone injections to flatten it. It's hard to say at this point how it will heal. Sounds like he was overly aggressive.

Avoid anymore trauma to the area and then reassess. Sorry this happened to you.

I thought that collagen fills the space of the scar?

Scar tissue is made up of collagen. An excessive buildup of scar tissue / collagen results in a hypertrophic scar, the opposite for a depressed scar. With subcision, you are basically inducing scarring to create a permanent layer of scar tissue that acts as a spacer to elevate the pitted scar.

wether raised, flat or indented scars are abundant in collagen but the collagen is thick and woven in different patterns than normal skin
scar tissue isnt much different from normal skin, the problem is the thickness and the pattern of fibers
if you crush the scar tissue with something like subcision you will crush the scar pattern of the fibers so the body will remodel the scar into a more better/normal skinlooking scar,

i think is very rare see a procedure like subcision creating hypertrophic scarring over normal skin
the best thing you can do is talk to your doctor that did the procedure

6 hours ago, blahblah82 said:

Scar tissue is made up of collagen.  An excessive buildup of scar tissue / collagen results in a hypertrophic scar, the opposite for a depressed scar.  With subcision, you are basically inducing scarring to create a permanent layer of scar tissue that acts as a spacer to elevate the pitted scar.

Ah, that makes sense  Thank you for answering.

But topic opener, why have you done subcision many times? I thought a couple of times is enough?

Depends on the severity of your scars..