All Symptoms
Medically reviewed by Dr. Liu Ta-Ju · 2026-03-24

Uncontrollable Volume — Collagen Overgrowth

FOS 50-80★★★☆☆Revision Difficulty

Face keeps expanding months after collagen stimulator injection. Unlike HA (fixed volume), stimulators trigger your own tissue growth that cannot be "turned off" or dissolved.

Why It Happens

Individual immune response varies dramatically. Some patients produce excessive collagen in response to PLLA/PCL. No way to predict or control final volume. Repeated treatments compound the problem.

Severity

Moderate to severe. FOS 50-80.

Treatment Solutions

Micro-invasive dissection to remove excess fibrotic tissue and the embedded stimulating particles.

Why Traditional Treatment Fails

No enzyme exists to dissolve your own collagen. Steroids may slow growth but cause fat atrophy. Waiting it out — the overgrowth may stabilize but won't reverse.

The Liusmed Approach

Ultrasound differentiates overgrown fibrotic tissue from normal tissue. Through pinhole entries, excess fibrotic tissue is dissected, and embedded PLLA/PCL particles are extracted — removing the stimulation source to stop further growth.

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Dr. Liu's Perspective

"Collagen stimulators are like planting seeds — once they sprout, you can't un-grow them with chemicals. You have to physically uproot the plant. That's what we do — remove the seeds (particles) and trim the overgrowth."

Recovery Timeline

10-14 days. Swelling more pronounced due to tissue dissection. Volume reduction visible at 2-3 weeks. Full stabilization at 2-3 months.

FAQ

Will the overgrowth stop on its own?

The overgrowth may eventually stabilize when the stimulating particles are fully absorbed (1-3 years), but the excess tissue that has already formed will NOT shrink or disappear on its own. Physical removal is needed to reduce the volume.

References

  1. Lemperle G, et al. Aesthet Surg J. 2009;29(6):S32-S48
  2. Fitzgerald R, et al. Dermatol Surg. 2009;35 Suppl 2:1674-1683

This information is for educational purposes only and does not constitute medical diagnosis. Please consult a qualified physician for proper evaluation.

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