Yes, microneedling can make many fully healed scars look smoother and less noticeable by encouraging the skin to remodel collagen. For patients asking, "does micro needling improve scars," yes the improvement is significant but it does not fully erase a scar and it is not the answer for every scar.
The before-and-after featured in this article shows a healed scar caused by a dog bite with a strong visible improvement. It is an example of what professional microneedling treatment may achieve for a traumatic scar, not a promise that every patient will have the same result. Scar age, depth, texture, color, location, skin type, healing history, and the number of sessions can all affect the outcome.
Does microneedling really work for scars?
Microneedling is also called collagen induction therapy because it creates controlled, tiny channels in the skin that activate a repair response. As the skin heals, it produces and reorganizes collagen and elastin. That remodeling process can help soften an uneven scar surface and make the scar blend more naturally with the surrounding skin.
Clinical research supports microneedling as an option for several kinds of scarring, including scars caused by acne, surgery, and trauma. A scar is permanent tissue, so treatment focuses on reducing how noticeable it looks rather than remove every trace of it.
Results are also gradual. Some patients notice an early improvement in texture or radiance, but collagen remodeling continues for weeks and months after treatment. A series of sessions will create a more meaningful change than a single appointment, particularly when the scar is deeper or more irregular.
How does microneedling improve scar texture?
A scar forms when the body rapidly repairs an injury with collagen. That collagen may be arranged differently from normal skin, which can leave an area that looks depressed, raised, firm, shiny, or uneven. Microneedling gives the skin a controlled signal to begin another repair cycle.
During treatment, a FDA approved device passes sterile, fine needles over the scar at settings selected for the tissue and treatment area. The goal is to encourage new collagen formation without creating uncontrolled injury. Over time, this process may help:
- Reduce the visual contrast between the scar and nearby skin
- Soften an uneven or rough surface
- Improve the appearance of shallow depressions
- Support a more even overall texture
- Make a mature scar less prominent in normal lighting
Needle depth and technique will be individualized. More aggressive treatment is not automatically better. The safest and most effective settings depend on the scar’s structure, the body area, the patient’s skin, and the provider’s clinical assessment.
What does the dog bite scar before and after show?
Dog bites can create irregular traumatic scars because the injury may involve puncturing, tearing, tissue loss, or a complicated healing process rather than a clean surgical incision. Once the original wound is fully closed and medically healed, a lingering scar may still look uneven or stand out from the surrounding skin.
The real patient image featured here shows a clear visible improvement in a healed dog bite scar after a series of micro needling treatments. The treated scar appears less prominent in the after image, which illustrates the remodeling potential of this treatment for traumatic scars. The image represents individual patient results every patient requires a personalized treatment plan for best results. It does not establish how much improvement another person will see or how many sessions another scar may require.
Which types of scars respond best to microneedling?
Microneedling is often considered for scars with a textural component, especially scars that are mature, stable, and fully healed. It may be useful for shallow depressed scars, selected acne scars, and some surgical or traumatic scars. A consultation is important because scars that look similar to a patient can behave very differently.
Scar features that require special evaluation include:
- Raised, thick, itchy, or growing scars that may be hypertrophic or keloid scars
- Very deep, tethered, or narrow scars that may need a different technique
- Scars with persistent redness, brown discoloration, or visible blood vessels
- Scars over areas with limited tissue, altered sensation, or previous surgery
- Any scar that is painful, draining, ulcerated, or otherwise not fully healed
Sometimes a different procedure or a combination plan is more appropriate. Laser scar treatment may target color or texture in ways that standard microneedling does not, while laser skin resurfacing may be considered for selected deeper textural concerns. The right choice should be based on the scar itself, not simply on which treatment is most popular.
How many microneedling sessions are usually needed for scars?
There is no universal session count for scar treatment. Skin & Beauty Center notes that many patients receive a series of three microneedling treatments spaced about six to eight weeks apart, while deeper wrinkles, stretch marks, photoaging, or acne scars may require a longer series. A traumatic scar such as a dog bite scar needs its own plan.
The provider may adjust the number and spacing of appointments based on how the skin responds. Adequate recovery time is important because the visible procedure is only the beginning of the process. Collagen continues to develop after the surface redness has resolved.
Patients should avoid comparing their progress too early. Temporary swelling can make a scar look smoother immediately after treatment, but that is not the final result. Standardized photographs taken before each session can help separate temporary changes from gradual, lasting improvement.
Is microneedling safe for traumatic scars?
Professional microneedling is generally well tolerated when the patient is an appropriate candidate and the treatment is performed with sterile equipment by a trained healthcare professional. Common short-term effects can include redness, warmth, tenderness, dryness, mild swelling, or pinpoint bleeding.
A dog bite scar should never be treated while the original injury is open, infected, inflamed, or still actively healing. The initial bite also requires appropriate medical care because animal bites can damage deeper structures and introduce infection. Microneedling is a later cosmetic option for the residual, fully healed scar.
Before treatment, tell the provider about a history of keloids, poor wound healing, active skin infections, cold sores, immune conditions, recent procedures, and all medications or supplements. At-home rollers and pens are not equivalent to an in-office procedure. They can create inconsistent injury, introduce bacteria, and make it harder to select a safe depth for scar tissue.
What should you expect before and after microneedling?
A scar consultation should begin with an examination of the skin and a discussion of the original injury, healing timeline, previous treatments, and goals. The provider may take baseline photographs and explain whether texture, color, thickness, or a combination of concerns is making the scar noticeable.
Before the appointment, patients should follow individualized instructions about sun exposure, skincare products, medications, and active breakouts or rashes. On the treatment day, the skin is disinfected and a topical numbing product will be used depending on the treatment area and plan.
After treatment, patients are commonly advised to:
- Use only the gentle skincare products recommended by the provider
- Avoid picking, rubbing, exfoliating, or applying irritating active ingredients
- Protect the area from direct sun and use appropriate sunscreen
- Avoid activities that expose healing skin to excessive heat, sweat, or contamination
- Contact the office if redness, swelling, pain, or drainage seems excessive or worsens
The DermLA microneedling page notes that redness commonly lasts about two to four days, although recovery varies with the settings and treatment area. Visible changes can continue to develop over several weeks, with collagen-related improvement progressing for months.
Where can you get microneedling in Northridge and Santa Clarita CA?
Patients considering microneedling for a mature traumatic scar can receive a personalized evaluation at Skin & Beauty Centers in Northridge & Santa Clarita. Gisela Grimaldo, FNP, is an Aesthetic Nurse Practitioner who develops individualized cosmetic treatment plans based on each patient’s concerns, skin, and goals.
Our offices offer micro needling as well as other cosmetic and laser services, which makes it possible to compare options when a scar has more than one component. An in-person evaluation can help determine whether microneedling alone is appropriate, whether another modality may be more useful, and what level of improvement is realistic.
Book a consultation at our Northridge dermatology location or call (818) 886-3884 to discuss a fully healed scar and receive a treatment recommendation.
What questions should you ask before booking microneedling for a scar?
A thoughtful consultation should give you a clear explanation of what the provider sees in the scar and why a particular treatment is being recommended. Useful questions include:
- What type of scar do I have, and is it fully mature?
- Which feature are we treating, texture, color, thickness, or tethering?
- Why is microneedling a better choice for this scar than another procedure?
- How many sessions might be reasonable, and how will progress be documented?
- What downtime and aftercare should I expect for this body area?
- What result would be considered realistic for my scar and skin type?
The strongest treatment plan balances visible improvement with safety and realistic expectations. A dramatic before-and-after can be encouraging, but the decision should still begin with a professional examination of your own scar.
Written by Gisela Grimaldo, FNP, Aesthetic Nurse Practitioner, Skin & Beauty Center, Northridge. Published July 2026.
