I was planning to get TCA Cross on my scars, but one doctor told that I risk hypopigmentation. Is this true?
Risk of Hypopigmentation in TCA Cross
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Doctor Answers 4
Hypopigmentation is a risk from TCA treatments for scars but it is usually temporary.
TCA peels do help scars, especially icepick ones but run a small risk of hypopigmentation which is usually temporary. Don't let that risk detract you from improving your scars.
TCA Cross - risk of pigmentation changes (Hypopigmentation and Hyperpigmentation)
TCA Cross can result in both hypopigmentation and hyperpigmentation
We do not offer the "TCA Cross" treatment at use of 100% TCA is potentially dangerous, unpredictable, and more likely to cause permanent loss of pigmentation or more likely post inflammatory hyperpigmentation (dark spots) like you are experiencing and potentially other scarring. Patients with dark skin types are more likely to experience this side effect. These dark spots can often be prevented by pre and post treatment with hydroquinone or other whitening agents, lasers etc.
There are other methods in my hands that seem to work better including "diamond wire" undermining or direct mini-excision of acne pits under magnification to leave a flat scar.
TCA CROSS Technique
The CROSS technique is effective for acne scars with high potency TCA. It does make an initial wound and the epidermolysis (shedding of the top layer of skin) does appear "frosted" immediately after treatment. Pigment changes (both lightening and darkening) do occur and high potency TCA is not for all skin types. In experienced hands repeated treatments with TCA Cross offers good results.
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These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.