Blunt cannula.
A needle without a sharp tip that lets filler be distributed over an area from one entry point. Reduces the risk of injuring vessels.
Blunt cannula vs. needle in filler treatments: advantages for safety and bruising, limits, typical areas and why the choice depends on the findings.
A closer look.
A microcannula is a flexible tube with a rounded tip and a side opening. It is inserted through a single entry point prepared with a needle and then glides through the tissue instead of piercing it. Blood vessels and nerves tend to be pushed aside rather than injured.
Advantages: fewer punctures, less bruising and swelling, lower risk of injecting into a vessel. Preferred areas are cheeks, nasolabial fold, tear trough, jawline and neck. Needles remain sensible when very precise small deposits are placed – for example in the lip or for botulinum toxin.
A cannula does not replace anatomical knowledge: vessel injuries are still possible, just rarer. The physician decides needle or cannula according to area, tissue and product.
This lexicon entry is general information and does not replace the medical consultation required under German law (§ 630e BGB).
At a glance.
A question about Blunt cannula? Send us a short WhatsApp message – we usually reply the same working day.
Ask via WhatsAppFrequently asked questions.
Does the cannula hurt less?
Usually yes, because only one puncture is needed and the tissue is not pierced; a feeling of pressure remains.
Is the cannula always better?
No, for very fine, targeted corrections the needle is more precise.
Sources and further reading.
- NHS: Dermal fillers – patient information
- MPDG – German medical devices act (fillers are medical devices)
- BfArM – Federal Institute for Drugs and Medical Devices
- DGPRÄC – German Society of Plastic, Reconstructive and Aesthetic Surgeons
- § 630e BGB – duty to inform before treatment (German Civil Code)
- DGBT – German Society for Aesthetic Botulinum Toxin Therapy
- AWMF – German clinical practice guidelines
External links open in a new window; their operators are responsible for their content. Medical responsibility for this page: Katayoun Mostaghimi, specialist in general medicine. Last updated: 2026-10-05.
Related pages.
Talk to the physician.
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Or start with a consultation only: consultation appointment (€50, credited against a treatment)