Blowing hair will not directly cause hair loss, but will make hair loss more likely to occur.
Generally, using a hair dryer to blow out hair will have the effect of quickly evaporating water, but because the temperature of the hair dryer is high, up to 50 ℃, it is easy to cause damage to the hair when it is used too close to the scalp or improperly adjusted temperature.
Using a hair dryer, while drying the scalp quickly, also removes the natural oils from the hair, which can make the hair more prone to breakage or cracking. If used close to the scalp, excessive heat can easily cause scalp dermatitis, which indirectly leads to hair loss.
If you have frequent hair loss, there may be other reasons, need to go to the hospital, improve the examination to clarify the cause of the disease, give targeted treatment or treatment.