There is also a sizing issue, as novelty slippers do not usually come in individual sizes, merely a sizing guide (e.g. 9-12). This can cause issues when trying to find a pair that fit properly. Also, the sheer size of the slippers can cause issues when walking.

 

Most styles of slipper offer little or no support for the tender arch of the human foot. This is essential to children, whose young feet are still developing. The lack of support can allow the foot to roll inwards during walking, which can cause many health issues. Of course, opposing studies suggest that the introduction of rigid heels in slippers and shoes of infants and toddlers can actually inhibit a child's ability to learn to walk as quickly as they would otherwise.

Some British schools have rules that enforce the wearing of slippers indoors. While this is a good method of regulating hygiene, some rigid-soled slippers can inhibit the correct growth of the child's developing foot. This has caused some concerned parents quite some grief. While wearing slippers can offer comfort, it can also be a danger, in both terms of walking and movement, as well as the development of the young foot.

Slippers can also be essential to the health of the foot. Some Diabetics may be advised to wear slippers, as diabetes can have effects on blood flow to the extremities of the body. Wearing slippers can offer warmth and comfort that will allow a good flow of blood.