Objectives: The FDA has given the definition that ‘permanent hair reduction refers to a significant reduction in the number of terminal hairs after a given treatment, which is stable for a period of time longer than the complete growth cycle of hair follicles at the given body site’.
From the patients’ point of view, a permanent hair reduction means that hairs do not regrow and that the reduced hairiness lasts persistently, and this is associated with many complaints from the patients.
Introduction: Developed in 1996 based on the theory of selective photothermolysis, laser hair removal (LHR) is one of the most popular cosmetic procedures worldwide.
The laser delivers a pulse of light absorbed by melanin in the pigmented hair shaft, which becomes hot. The desired result is thermal destruction of bulge cells surrounding the hair shaft.
Numerous reasons exist for removing hair, including hygiene, comfort, aesthetic reasons, sex appeal and some may feel pressured by family or friends to participate in hair removal practices.
Materials / method: In general, LHR is a safe modality, and common side effects include temporary pain, transient erythema, and perifollicular edema; these adverse events depend on variable factors such as skin type, treatment site, laser system, parameter set, and operator knowledge. More-severe side effects are thermal burns, blisters, hyperpigmentation, persistent hypopigmentation, and permanent scarring can also occur.
Laser hair removal procedures can generate high exposures to ultrafine particles for dermatologists and other individuals performing laser hair removal.
Results: Other uncommon side effects include de-novo growth of hair outside the area treated by laser, potentiation of co-existing vellus hair in the treatment area, induction or aggravation of acne, rosacea-like rash, premature grayness of hair,
tunneling of hair under the skin, prolonged diffuse redness and edema of the face, focal hypopigmentation of the lip, angular cheilitis, allergic reaction to the cooling gas, inflammatory and pigmentary changes of pre-existing nevi, and persistent urticaria.
Conclusion: We have possible complicationsand we need to thoroughly known and understood, early detected and recognized, deeply analyzed (personalized patient approach), and properly treated until complete recovery,
Many of these adverse effects can be minimized with appropriate selection of clients, use of the correct wavelength for a person’s skin and hair type, cooling of the skin during treatment, eye protection, and appropriate pre- and post-treatment care.
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