"If a child's hair is thin, shaving it will make it thicker! If their eyelashes are short, cutting them will make them longer..."Do you believe these long-standing "child-rearing tips"? Shu Hong, Director of Dermatology at Kunming Children's Hospital, explains that shaving baby hair or trimming eyelashes won't alter their natural growth patterns. These traits are 70% genetically determined, with only minor adjustments possible through proper nutrition or care later on. Blindly trimming eyelashes or shaving baby hair could even lead to cross-infection.
Preserve the hair roots when shaving baby hair
Every parent hopes their child will have thick hair and long eyelashes.Dr. Shu Hong explains that babies' delicate skin relies on hair follicles for perspiration, temperature regulation, skin hydration, and protection against epidermal infections. Eyelashes shield eyes from foreign particles, dust, flying insects, and even block some sunlight during bright exposure. A baby's hair growth is influenced by genetics, nutrition, and endocrine factors.Simply put, the period from birth to age 2 is the "foundation-building" stage, while ages 12 to 18 mark the stage of fullness and beautification. Parents should not rush or artificially intervene in growth. It is advisable to wait until after age 18 to observe and consider any interventions, thereby reducing the risk of infections caused by current blind actions.
The amount of hair a baby has at birth does not determine their future hair condition.If parents insist on shaving their child's baby hair, it's best to leave 0.1 to 0.2 millimeters of hair root to avoid cutting too close and damaging the scalp.
"After shaving it all off, my son is now four years old and his hair hasn't grown much thicker. So, I plan to skip shaving the baby hair after my second child is born to see whose hair turns out better."With the two-child policy now in effect, many parents like Ms. Qin share these concerns and plan to use their second child for comparison. Special care is needed when shaving hair at one month old. Since infants' skin is exceptionally thin, delicate, and underdeveloped, they should not be shaved completely bald—especially not with old-fashioned razors.as this can easily damage hair follicles. Since follicles stimulate sebaceous and sweat gland secretion, damage may cause hair loss in the affected area for up to six months afterward. Additionally, some barbershops fail to sterilize tools properly. If shaving causes cuts, infants' low resistance to external irritants increases infection risk—especially since newborns are prone to eczema. Seasonal factors also warrant consideration.Summer brings intense UV rays, while winter temperatures are lower, making hair particularly important for protecting infants during these seasons. Therefore, when shaving a baby's cradle cap, it's advisable to leave some hair length intact. Parents are also encouraged to bring their own clippers to the barber shop to ensure dedicated, single-use tools.
"Beyond genetic factors, even infants born with sparse or light-colored hair typically see their hair darken gradually after age three. Excessive artificial intervention is unnecessary. Moreover, for pathological hair loss, medical treatments like medications and massage therapies exist. Parents should consult doctors to learn scientifically proven methods."
For children with abnormally yellow hair, Shu Hong advises seeking prompt medical attention if the hair color differs from that of the parents, to avoid delayed treatment that could lead to brain damage.
Additionally, eyebrows should not be shaved. Infant eyebrows typically fall out naturally between 3 and 6 months of age, a normal part of human metabolism. Like scalp hair, shaving has no effect on eyebrow growth.Moreover, children's skin is extremely delicate. Shaving eyebrows risks cutting the skin, and if infected by bacteria, it could lead to ulceration, scarring, and permanent loss of eyebrow growth. Accidentally shaving the root area may also alter their position and shape. In reality, most children's eyebrows don't take shape until around age 2.
Trimming Eyelashes Increases Risk of Eye Infections
At birth, babies typically have sparse, short eyelashes that gradually grow longer over time. Due to genetic factors and nutritional status, eyelash length and density vary from person to person. Attempting to alter this through trimming is futile.
It is understood that a single eyelash has a growth phase of about 2 months and a resting phase lasting 3-9 months. Each eyelash has a lifespan of roughly 90 days before naturally shedding and being replaced by a new one, continuously renewing itself.Infants are born with eyelashes, though they are very short and faint. Due to infants' rapid metabolism, eyelashes grow quickly alongside the rest of the body by the age of one or two. Therefore, there is absolutely no need to trim an infant's eyelashes.Furthermore, the length and density of eyelashes are genetically determined. Trimming eyelashes does not make them grow longer, as the number of hair follicles is fixed and growth ceases at a specific length.
Children are naturally active, and cutting eyelashes carries a high risk of causing unnecessary injury. The trimmed portion is the delicate tip, while the remaining root is relatively coarse and rigid. If these lashes irritate the eye, they significantly increase the risk of eye infections, potentially leading to various ocular conditions in young children.Newly grown eyelashes can irritate the baby's eyeball, conjunctiva, and cornea, causing symptoms like photophobia, tearing, and eyelid spasms. In severe cases, this may lead to secondary eye infections.
Therefore, she advises that there is absolutely no need to trim a baby's eyelashes; they should be allowed to grow naturally.
Furthermore, even if some children exhibit ingrown eyelashes, mothers should not trim them themselves to prevent irritation. This is because some ingrown eyelashes are temporary and will resolve naturally. If the condition genuinely impacts the child's vision, medical consultation is necessary.
Some parents also apply substances like olive oil or vitamin E to their children's eyelashes. This practice is not scientifically sound; natural growth is always best for any part of the body.