Nowadays, many girls change their hairstyles every day and wish they could keep up with the trend of the times. But their hair cannot be flipped over, turning into straw a few times, and their hair that loves beauty and love cannot have both. Some girls may think this way, but there are many bad things, you know?   1. Until its origin A wig is cut from someone else's head. There are no hygiene regulations. Who knows where his wig comes from? Do you have any illnesses? There is a significant health risk, for the sake of their own health, or not accepting it. 2. Scalp allergy Usually, hair is covered with glue, which is close to the scalp and can release toxic substances, leading to scalp allergies. 3. The scalp is too tight Generally, hair is about half a centimeter above the scalp. In order to achieve good results, the staff tighten the hair, causing poor blood flow to the scalp and hair to fall off. Pick up your hair for the sake of beauty, and also consider safety issues, for your own health, or for the benefit of not picking it up.