Are there any risks of hypopigmentation after Q-switched laser to remove a birthmark?

Doctor's Answers 2

The white spots on the forehead are small hypopigmented macules and these are likely due to the side effects of the laser treatment. It is usually difficult to speed up the repigmentation process. However, the pigmentation will often gradually improve over time, but in some cases, they may be rather persistent.

Naevus of Ota usually requires multiple laser treatment sessions to clear. I agree with Dr Rui Ming that just using the ‘stronger’ laser is sufficient to treat the Naevus of Ota, and this usually does not lead to much hypopigmentation. However, I am unsure of your exact laser settings so it is best for you to discuss this with your doctor.

It does look like a bit of hypopigmentation and you are correct that it is difficult to treat (most of the time we will have to rely on our own cells to re-pigmentate the area unless you explore other medical repigmentation options).

I would suggest laying off the “gentler” laser treatment that you have every 2 weeks for the hypopigmented areas. That being said, the “stronger” laser treatment that you have every 6 weeks should be able to treat the Naevus of Ota (to avoid the hypopigmented areas). Usually, treatment of Naevus of Ota does not leave a white patch.

Nonetheless, I think you should discuss your concerns with your treating doctor.

Similar Questions

Does IPL cause hypopigmentation, and what can be done to treat it?

Intense pulsed light is a popular hair removal treatment that is usually safe when used by an experienced practitioner. However, there are documented risks for IPL including hypopigmentation (white spots) and hyperpigmentation (dark spots). Your white spots might be a case of Hypopigmentation. My suggestion for the treatment of your possible hypopigmentation: 1. Avoid the possible trigger - IPL 2. Consult a qualified doctor for a formal diagnosis 3. Topical creams to stimulate pigmentation recovery Hypopigmentation is a challenging condition to treat.

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Human

How can I remove cafe au lait birthmark?

Cafe au lait macules are birthmarks and are benign. Laser treatments can be used to treat it. There are different lasers that can be used. However, usually multiple treatments are required and complete clearance may not be achievable in all cases as treatment response may vary with individuals. Furthermore, the recurrence risk is also very high. For these reasons, you should discuss this carefully with your doctor before starting treatment. You can see a dermatologist/ aesthetic GP or doctor experienced in laser treatment.

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Dr Colin Theng

Dermatologist

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