Post-Injury Hair Growth and Laser Hair Removal Concerns

Issues related to hair growth near the wound and laser hair removal?

Hello, doctor.
I was in a car accident in mid-May and sustained deep wounds that didn't heal until early July (during that time, I had artificial skin applied).
One of the wounds required two stitches.
Now, the hair around the injured area has grown back excessively, becoming thick and coarse.
Will this improve over time? Additionally, I would like to ask if it's safe to undergo laser hair removal considering that I have a steel plate implanted due to a left calf fracture from the accident.
Could the heat from the laser affect the steel plate, and is it advisable to have laser treatment with an implanted steel plate?

R, 10~19 year old female. Ask Date: 2016/08/21

Dr. Wu Yuxin reply Dermatology

Without actually seeing the lesion, it is difficult to determine.
If it is very concerning, please seek medical attention as soon as possible.
However, it should not affect the metal plate.

Reply Date: 2016/08/21

More Info

Post-injury hair growth can be a complex issue, especially when considering the effects of trauma and subsequent treatments like laser hair removal. Based on your situation, it seems you have experienced significant changes in hair growth following your accident, which is not uncommon.
When the body undergoes trauma, such as a car accident, it can trigger a variety of physiological responses. One of these responses is the activation of hair follicles in the vicinity of the injury. This phenomenon, known as "hypertrichosis," can result in the growth of coarse and dense hair in areas surrounding the injury site. This is often temporary, and as your body continues to heal, the hair growth may normalize. Typically, it can take several months for the hair growth pattern to stabilize after an injury, so it is possible that the excessive hair growth you are experiencing may subside over time.

Regarding your question about laser hair removal with a steel plate in your leg, it is essential to approach this with caution. Laser hair removal works by targeting the pigment in hair follicles with concentrated light energy, which can generate heat. While the laser is designed to affect only the hair follicles, there is a concern about the presence of metal implants, such as steel plates, in the body.
The primary concern is that the metal may absorb some of the laser energy, potentially leading to localized heating. This could cause discomfort, burns, or other complications in the area surrounding the implant. Most practitioners recommend avoiding laser treatments over areas with metal implants until you have fully healed and consulted with a medical professional. It is crucial to discuss your specific situation with your healthcare provider or the practitioner performing the laser treatment. They can provide personalized advice based on your medical history and the specifics of your injury and recovery.

In summary, while the hypertrichosis you are experiencing may resolve as your body continues to heal, it is advisable to wait before undergoing laser hair removal, especially in areas where you have metal implants. Always consult with your healthcare provider to ensure that any treatments you consider are safe and appropriate for your condition. They can help you navigate the best course of action for both your hair growth concerns and any potential treatments you may be considering.

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