In the video, a person is seen washing a child's hair in a sink. The child is lying down with their head tilted back, and the person is using their hands to massage and rinse the child's hair. The child's hair is wet and appears to be curly. The sink is made of stainless steel, and there is a pink polka dot towel visible in the background. The person's hands move through the child's hair, ensuring that it is thoroughly cleaned.