Since launching in 2002, Crocs have become one of the world’s widest known footwear brands. However, a Chicago-based podiatrist has claimed Crocs could lead to serious foot-related health issues.

“Unfortunately, Crocs are not suitable for all-day use. These shoes do not adequately secure the heel. When the heel is unstable, toes tend to grip which can lead to tendinitis, worsening of toe deformities, nail problems, corns, and calluses,” said Dr. Megan Leahy, a podiatrist with the Illinois Bone and Joint Institute.

Leahy explained how she sees patients on a regular basis that complain of arch or heel pain, who are wearing Crocs. This is caused by Crocs flexible shank, which is directly related to foot pain.

“Patients are more likely to have foot pain if their shoes bend in the shank,” said Dr Alex Kor, president of the American Academy of Podiatric Sports Medicine.

While Leahy said that Crocs offer good arch support, she urged customers to reconsider when looking for a footwear option to wear for 8-10 hours a day.