1. It may be that the merchant neglected to add the washing label when making.

2. It may be that the merchant neglected to show the washing label to the customer when selling.

3. It may be that in order to save costs, merchants deliberately do not need to wash labels, because washing labels will increase the cost of clothing.

4. It may be that the clothes belong to three no products and there is no washing label.

5. It may be foreign trade goods or smuggled goods, and the label washing will be cut off.

If the clothes you buy don't have a washing label, I suggest you try to contact the merchant first to find out the specific situation. If you can't solve it, you can complain to the relevant departments or seek legal help.