PDO Thread Placement Guide

Detailed Explanation of PDO Threads

Exploring the characteristics and functions of different PDO threads in greater detail is essential to gaining a deeper understanding of PDO thread placement.

Mono Threads

Structure: Mono threads are smooth, straight threads without any barbs. They are typically made of polydioxanone, a material known for its safety and biocompatibility.

Function: Mono threads’ primary function is to stimulate collagen production. When inserted into the skin in a mesh-like pattern, they create a supportive network that encourages the body’s natural healing response, increasing collagen and elastin production. This results in improved skin texture, firmness, and elasticity.

Applications: Mono threads are commonly used for general skin rejuvenation, reducing fine lines, and improving skin tone. They are suitable for areas with mild sagging and are often used with other types of threads for comprehensive results.

Cog Threads

Structure: Cog threads are designed with barbs along their length. These barbs anchor into the skin, providing a mechanical lifting effect. The barbs come in various configurations, such as 3D, 4D, and 6D, each offering different levels of lift and support.

Function: The primary function of cog threads is to lift and reposition sagging tissues. When inserted, the barbs hook onto the skin tissues, allowing the practitioner to adjust and lift the skin to the desired position. This provides an immediate lifting effect, which is further enhanced as collagen production increases over time.

Applications: Cog threads are ideal for areas with moderate to severe sagging, such as the mid-face, jawline, and neck. They also lift the brows and improve the appearance of nasolabial folds and marionette lines.

Screw Threads

Structure: Screw threads are coiled, resembling a spiral or helix. They can be single or double (double screw threads), with the latter consisting of two intertwined threads for enhanced effects.

Function: Screw threads provide volumizing effects by creating a supportive framework within the skin. The spiral structure adds volume and stimulates collagen production, creating plumper, firmer skin.

Applications: Screw threads are used to restore volume in areas with significant tissue loss, such as the cheeks, temples, and under-eye hollows. They are also effective for enhancing lip volume and contour.

Combining PDO Threads

One of the advantages of PDO thread placement is the ability to combine different types of threads to achieve comprehensive and customized results. Practitioners often use a combination of mono, cog, and screw threads to address various concerns and enhance overall facial harmony.

Example Combination:

  • Mono Threads: These are used on the forehead and around the eyes to improve skin texture and reduce fine lines.
  • Cog Threads: Placed in the mid-face and jawline to lift and reposition sagging tissues.
  • Screw Threads: Inserted in the cheeks and temples to restore volume and enhance facial contours.

Detailed Procedural Steps

Practitioners follow detailed steps to ensure a successful PDO thread placement procedure. Each step is critical to achieving optimal results and minimizing risks.


  1. Patient Consultation: A thorough consultation is conducted to understand the patient’s concerns, goals, and medical history. This includes discussing any allergies, medications, and previous cosmetic procedures.
  2. Skin Assessment: The practitioner’s assessment includes evaluating the patient’s skin type, condition, and areas of concern. This helps determine the most appropriate thread types and placement strategy.
  3. Informed Consent: The practitioner provides detailed information about the procedure, potential risks, and post-procedure care. Informed consent is obtained before proceeding.


  1. Anesthetic Application: A topical anesthetic or local anesthesia is applied to the treatment areas to ensure patient comfort. This numbs the skin and minimizes discomfort during the procedure.
  2. Marking the Treatment Areas: The practitioner uses a marker to outline the areas where the threads will be inserted. This marking follows a predetermined plan based on the patient’s aesthetic goals.


  1. Thread Preparation: The PDO threads are prepared for insertion. This includes ensuring they are sterile and of the appropriate length and type for the treatment areas.
  2. Insertion Technique: The practitioner inserts the threads into the skin at specific depths and angles using a fine needle or cannula. The insertion technique varies depending on the type of thread and the desired outcome.
  3. Anchoring: The practitioner ensures that the barbs anchor securely into the skin for cog threads, providing the desired lifting effect. Mono and screw threads are placed in a mesh pattern or coiled to stimulate collagen production and add volume.
  4. Adjustment: Once the threads are in place, the practitioner may make minor adjustments to achieve the desired lift and symmetry. This may involve gently pulling or repositioning the threads.

Final Check

  1. Trimming Excess Threads: Any excess threads are trimmed, and the insertion points are cleaned to minimize the risk of infection.
  2. Symmetry Check: The practitioner checks the treated areas to ensure even placement and satisfactory results. Minor adjustments may be made if necessary.

Post-Procedure Care

Proper post-procedure care is crucial to ensure optimal results and minimize the risk of complications. Patients should follow their practitioner’s instructions carefully:

  1. Avoid Touching or Rubbing: Patients should avoid touching or rubbing the treated areas for at least 24 hours to prevent dislodging the threads.
  2. Ice Application: Applying ice packs to the treated areas can help reduce swelling and bruising.
  3. Sleep Position: Patients are advised to sleep on their back with their head elevated for the first few nights to minimize pressure on the treated areas.
  4. Avoid Strenuous Activities: Strenuous activities, including heavy lifting and vigorous exercise, should be avoided for at least a week to prevent thread displacement.
  5. Skin Care: Gentle skincare products should be used, and harsh treatments such as chemical peels and microdermabrasion should be avoided for several weeks.
  6. Follow-Up: Patients should attend follow-up appointments as scheduled to monitor their progress and address any concerns.

Advanced Techniques and Considerations

As the field of PDO thread placement continues to evolve, practitioners are adopting advanced techniques and considerations to enhance patient outcomes. These include:

  1. Customized Treatment Plans: Tailoring the treatment plan to the patient’s unique anatomy and aesthetic goals. This may involve combining PDO threads with other non-surgical treatments, such as dermal fillers and botulinum toxin injections.
  2. Layering Techniques: Using different thread types in multiple layers to achieve more comprehensive results. For example, mono threads may be placed superficially to improve skin texture, while cog threads are inserted deeper to lift sagging tissues.
  3. Tension Adjustment: Adjust the tension of the threads to achieve the desired lift and contour. Practitioners may use varying tension levels to create a more natural and harmonious result.
  4. Thread Patterning: Employing specific thread patterns to address different areas and concerns. For example, a V-shaped pattern may lift the mid-face, while a linear pattern is applied to the jawline.


PDO thread placement is a versatile and effective non-surgical facial and body rejuvenation procedure. Patients can achieve optimal results with minimal risks by understanding the different types of threads, procedural steps, and post-procedure care. As with any cosmetic procedure, choosing a qualified and experienced practitioner is essential for ensuring safety and satisfaction. Advanced techniques and considerations further enhance the potential of PDO threads, offering patients customized and natural-looking outcomes. Learn More

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