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Filler nodule: what the term means
Medically reviewed by Dr Sin Yong · Last reviewed · 4 min read
Published 10 October 2026 · Reviewed by Dr Sin Yong
A filler nodule is a firm, localised lump that can be felt or seen after a dermal filler injection. Some are simply product that was placed too superficially or in a clump; others are the body's inflammatory or immune reaction to the filler, sometimes appearing weeks or months later. The type decides the management, so a lump is examined before anything is injected or dissolved.
Key facts
Early, non-inflammatory
Product placed too superficially or in excess; visible soon after treatment
Inflammatory
Red, tender or warm; may involve infection or an immune response
Delayed-onset nodule (DON)
Appears weeks to months later, often after an illness or other trigger (Convery 2021)
Granuloma
A foreign-body reaction; uncommon, with specific management (Lemperle 2009)
Why the type matters
A non-inflammatory lump of hyaluronic acid can often be dissolved with hyaluronidase. An inflammatory or delayed-onset nodule may need a different sequence, and consensus guidance advises against simply massaging or dissolving before the cause is understood (Signorini, Plast Reconstr Surg 2016; Convery, J Clin Aesthet Dermatol 2021). Non-hyaluronic fillers such as calcium hydroxylapatite or PLLA do not dissolve with hyaluronidase at all.
Where under-eye filler can sit and why superficial product shows. Schematic, not to scale.
Some early swelling settles within days, but a true nodule often persists; MRI studies have shown hyaluronic acid filler remaining for years (Master 2024). An examination decides whether it needs treatment.
If it is hyaluronic acid and not actively inflamed, usually yes, with hyaluronidase. Ultrasound can show where the product sits so it can be targeted.
References
Convery C, Davies E, Murray G, Walker L. Delayed-onset nodules (DONs) and considering their treatment following use of hyaluronic acid fillers. J Clin Aesthet Dermatol. 2021;14(7):E59-E67. PMID 34840652. source
Signorini M, Liew S, Sundaram H, et al. Global Aesthetics Consensus: avoidance and management of complications from hyaluronic acid fillers. Plast Reconstr Surg. 2016;137(6):961e-971e. doi:10.1097/PRS.0000000000002184. source
Funt D, Pavicic T. Dermal fillers in aesthetics: an overview of adverse events and treatment approaches. Clin Cosmet Investig Dermatol. 2013;6:295-316. doi:10.2147/CCID.S50546. source
Lemperle G, Gauthier-Hazan N. Foreign body granulomas after all injectable dermal fillers: part 2. Treatment options. Plast Reconstr Surg. 2009;123(6):1864-1873. doi:10.1097/PRS.0b013e3181858f4f. source
Master M, Azizeddin A, Master V. Hyaluronic acid filler longevity in the mid-face: a review of 33 magnetic resonance imaging studies. Plast Reconstr Surg Glob Open. 2024;12(7):e5934. doi:10.1097/GOX.0000000000005934. source
