SMP for scalp scars: camouflaging transplant and injury scars

Scars on the scalp can come from many causes: a past operation, an accident, a burn, or the donor area of a hair transplant. Hair does not usually grow in scar tissue, so scars can show as pale lines or patches, especially with a short haircut. Scalp micropigmentation (SMP), which places tiny dots of pigment in the skin, is one option used to make scars less noticeable ^{1 2}.

How SMP camouflages a scar

• Pigment dots are placed in and around the scar to match the "stubble" look of the surrounding hair
• This reduces the contrast between pale scar tissue and the darker look of hair-bearing skin
• The aim is camouflage, not removal: the scar is still there, but it may be much less obvious

Published reports describe SMP as useful for scalp scars. In one small Korean series, six of 43 people treated had scalp scars, and the authors reported highly satisfactory results without adverse effects for nearly all patients ³. Another series describes SMP as able to camouflage scalp scars and suitable for people with unsatisfactory transplant results ⁴. These are small studies, so results in your case may differ.

Common scars people camouflage with SMP

• Linear donor scar from strip harvesting (FUT), which runs across the back of the head ⁵
• Small dot scars from FUE, which can become visible with a very short haircut (FUE scars)
• Surgical scars from head or brain surgery
• Injury or burn scars
• Scars from earlier hair restoration that did not turn out as hoped ²

Why scar tissue is different

Scar tissue does not behave like normal skin. It may be:

• Thinner or thicker than surrounding skin
• Smoother, with fewer blood vessels
• Paler or darker than the rest of the scalp

This means pigment may take differently in scar tissue. More sessions may be needed, and the practitioner may need to adjust technique and depth. Ask your practitioner how they plan to handle your particular scar.

When SMP may not be suitable

• Scars that are still red, raised or changing: many practitioners prefer to wait until a scar has matured
• Keloid or hypertrophic scars, or a history of them: discuss the risk with a doctor first
• Active scarring hair loss conditions, such as lichen planopilaris, which need medical treatment first ⁶
• Active infection, open wounds or inflamed skin on the scalp

A doctor can help confirm the cause of the scar and whether the scalp is ready.

SMP versus other options for scars

• Hair transplant into the scar: possible in some cases, though grafts may not grow as well in scar tissue as in normal skin. Some people combine grafts with SMP (SMP vs hair transplant)
• Scar revision surgery: a surgeon may sometimes be able to reduce the scar itself
• Longer hairstyle: covering the scar with longer hair is the simplest option, if it suits you
• Temporary camouflage: powders or fibres can help for short periods ⁷

What to ask before SMP on a scar

• Have you treated scars like mine? Can I see healed results?
• How many sessions do you expect for the scar?
• Will you do a test area first?
• How will you match the pigment to my surrounding hair and skin?
• What happens if the pigment takes unevenly?

Healing and aftercare

Aftercare is similar to other SMP sessions: keep the area clean and dry at first, do not pick, avoid sweating, swimming and sun while healing, and follow your practitioner's instructions (SMP aftercare). Scar tissue may react differently, so keep follow-up appointments.

Setting expectations

SMP can make a scar less noticeable, especially with a short haircut, but it may not hide it completely. Results depend on the scar's size, texture and colour, and on your hair and skin. Be wary of claims that a scar will become invisible. Poor results can be hard to correct and may need laser treatment ⁸ (SMP regrets and removal).

The bottom line

SMP is one option for camouflaging scalp scars, including transplant donor scars. Small studies report good results, but scar tissue behaves differently and may need extra sessions. Check that the scar has matured, rule out active scalp disease, and choose a practitioner with experience in scar work. See SMP in Malaysia and FUE vs FUT.

Frequently asked questions

Can SMP cover a hair transplant scar?

It can help camouflage FUT and FUE scars. Small studies report good results, but complete concealment is not certain ^{3 4}.

Does SMP remove the scar?

No. It reduces contrast so the scar is less noticeable; the scar is still there ¹.

Can SMP be done on a new scar?

Many practitioners prefer to wait until the scar has matured. Ask a doctor whether your scalp is ready.

Do scars need more SMP sessions?

Often, yes. Scar tissue can take pigment differently, so extra sessions or adjustments may be needed.

Educational content. Not medical advice.