Is it normal for a 4 year old to lose hair?

We know that adults lose a certain amount of hair every day. This is a normal physiological phenomenon and is also due to metabolism. But is it normal for a four-year-old to lose hair? It is abnormal for a four-year-old child to lose too much hair. At this age, the child's organs are not yet mature and he or she hardly loses hair. If there is a lack of hair, you should pay attention to whether there is a lack of trace elements. You can promote blood circulation in the head and supplement calcium.

Judging whether there is calcium deficiency is not comprehensive. You can make a comprehensive judgment based on the child's other symptoms, such as night terrors, excessive night sweats, irritability, etc., and weight gain. Keep your child's head clean at ordinary times, comb his head gently with a suitable comb to increase blood circulation; and get more sun exposure.

Losing a large amount of hair in a short period of time should indeed be taken seriously. There are many reasons for hair loss and yellowing hair, and they cannot all be explained by calcium deficiency. It is recommended that you take your child to the pediatric health department for a comprehensive physical assessment and ask a doctor to examine him/her carefully.

There are generally two possibilities for this situation:

1. Physiological hair loss: The baby's lanugo may fall off in the first few weeks after birth, and the hair will recover after a few months. This is a normal phenomenon. Babies can also experience hair loss due to constant friction on their heads. When a baby is sleeping, the pressure generated by the weight of the head alone can cause a large area of ​​hair loss on the baby's back of the head. This is because the roots of a newborn's hair are not yet firmly attached to the skin, so even if the friction is not frequent, it can cause the hair to loosen and fall off.

2. Pathological hair loss: It is more common in rickets (calcium deficiency). In addition to hair loss, rickets is often accompanied by other symptoms, such as crying, waking up easily during sleep, sweating, etc. Because the pillow is irritated by sweat, babies often shake their heads and rub against the pillow when they sleep, resulting in sparse hair and hair loss on the pillow, forming typical occipital annular hair loss, which is medically known as "occipital baldness" and is an early manifestation of rickets in infants.

It is recommended to take your baby to the hospital to check for trace elements to see if he is deficient in calcium so that he can be supplemented in time.

Why do people lose their hair?

Everyone experiences hair loss, but some people lose more hair and some people lose less hair. Some people will lose their hair piece by piece and eventually become bald. What is going on?

Hair has its own lifespan. When it grows to a certain length and reaches the end of its lifespan, it will die of old age and fall off naturally. This is a normal phenomenon. Everyone can experience this kind of hair loss, and it happens frequently.

Abnormal hair loss is because hair growth is affected. Hair growth requires nutrition, and nutrition is transported by blood. If a person is sick for a long time, weak, lacks blood, and has poor nutrition, the hair will fall out prematurely due to lack of nutrition and poor growth. Such people are prone to hair loss, and lose a lot of hair. Some people's hair falls out sparsely after a serious illness. This may be the reason.

When people overuse their brains, or are often worried or bored, or encounter something that makes them too nervous, their brains are greatly stimulated, which can sometimes affect the supply of nutrition and growth of hair. Because all activities of the human body are controlled by the brain, when the brain is stimulated, the activities will be disrupted and cannot function normally, which will inevitably stimulate the body's nutrition and cause hair loss. Some people encounter something overly exciting, which causes strong stimulation to their brains and makes them mentally abnormal. Sometimes a large amount of hair falls out overnight. People say it is "alopecia areata", and in fact, the hair falls out in this way.

Hair growth has a cycle of growth and aging, and natural physiological hair loss actually occurs every day. But some hair loss is caused by pathological factors. For young people, the more common one is alopecia areata, commonly known as "alopecia areata". This is a condition caused by stress and emotions, which causes the hair in a certain area of ​​the scalp to suddenly enter the terminal growth stage and fall out suddenly. In these cases, hair growth can resume within three to five months after treatment.