Why does a baby's hair grow upright?

In general, the reasons for a baby's hair standing upright may include genetics, static electricity, hair texture, hair follicle growth direction, and malnutrition. If any discomfort occurs, it is recommended to seek medical advice promptly. The specific analysis is as follows:

1. Genetics

If the baby's parents have naturally stiff or upright-growing hair, the baby may inherit these genetic traits, resulting in upright hair growth. This condition typically does not require special treatment and may gradually improve as the baby grows and their hair texture changes naturally.

2. Static Electricity

In dry weather, static electricity can easily build up when removing a baby’s clothes or hat, causing the hair to stand up. Increasing indoor humidity—such as by using a humidifier—can help reduce static buildup.

3. Hair Texture

Baby hair is generally finer and softer than adult hair and lacks sufficient weight, making it more prone to standing upright. No treatment is needed, as the hair will naturally thicken with age and the upright appearance will diminish over time.

4. Hair Follicle Growth Direction

During development, the direction of hair follicles on a baby’s scalp may differ from that of adults, leading to upright hair growth. Regular hair trims and maintaining clean hair are usually sufficient.

5. Malnutrition

Malnutrition is usually caused by improper feeding. If a baby lacks essential vitamins and trace elements, normal hair growth may be affected, leading to dry, brittle, and upright hair. Other symptoms may include poor appetite, delayed growth and development, and dull, lifeless hair. Under medical guidance, parents may administer supplements such as lysine calcium hydrogen phosphate granules, zinc gluconate, or vitamin D drops to treat the condition.

To promote healthy hair growth, maintain appropriate indoor humidity, ensure proper and balanced feeding, provide adequate nutrition, and regularly trim and keep the baby’s hair clean.