What to do if the brush head and the bristles of the Xiaomi Smart Electric Toothbrush T501 received just now were bifurcated?

The bristles of our toothbrushes are copper-free and the bristles are first polished and then planted. In the process of hair planting, the bristles are stressed when absorbing hair and slight bifurcation will occur, but it will not affect the brushing effect, so you can use the toothbrush normally.