Answer:

The condition known as "cow-lick" hair loss, characterized by thinning hair at the temples, is likely male androgenetic alopecia. If detected early, before hair follicles are completely atrophied, this condition can be improved through various methods, with Er:YAG laser being an effective option.

The 2,940 nm Er:YAG laser, with appropriate parameters, creates a superficial thermal effect on the scalp. This action increases microcirculation, stimulates local growth factor production, and nourishes hair follicles. When the environment around the hair follicles improves, hair breakage and shedding decrease, hair strands become stronger, and hair density can increase in areas where follicles are still active.

However, not all hair loss cases respond effectively to Er:YAG laser. Treatment success depends on the underlying cause, the duration of hair loss, the condition of hair follicles at the time of examination, and any other combined methods.

For mild or moderate hormonal hair loss, Er:YAG laser may be prescribed as part of a treatment regimen to support follicle recovery. If hair loss is severe, rapidly progressing, or has lasted for many years, doctors often combine it with other methods. These include platelet-rich plasma (PRP), nutrient electrophoresis, photobiomodulation, or medication to enhance effectiveness and slow the progression of baldness.

A doctor uses an Er:YAG laser to treat hair loss for a woman. *Illustrative photo: Tam Anh General Hospital.*

It is advisable to visit a Dermatology - Aesthetic Dermatology specialist at a hospital. The doctor will assess the extent of hair follicle damage and determine their potential for recovery. Some cases may also require further tests to rule out other causes such as alopecia areata, micronutrient deficiencies, or scalp conditions.

Hair loss treatment demands patience, as follicles need time to recover. Patients typically undergo 6 to 8 treatment sessions, spaced two weeks apart. Once hair regrows and density improves, doctors transition to a follow-up and maintenance phase to slow the disease's progression.

If you notice your hairline receding or temple hair thinning despite proper hair care and product changes, seek medical attention promptly. Early diagnosis and treatment preserve active hair follicles, enhance recovery potential, and prevent severe baldness.

Dr. Vo Thi Tuong Duy

Dermatology - Aesthetic Dermatology Unit

Tam Anh Polyclinic District 7