causes of hammertoes
Hammertoe can also be present at birth (congenital). Hammertoe also can be caused by a bunion, which is the knobby bump that sometimes develops at the side of the big toe. A bunion causes the big toe to bend toward the other toes. The big toe can then overlap and crowd the smaller toes. Occasionally, a hammertoe is inherited or caused by arthritis in the toe joint.
Hammertoe: Causes and Treatments. by Berkeley Wellness | December 29, 2016. Print. Hammertoe is a painful foot deformity in which a toe bends unnaturally and becomes clawlike. This happens because the tendons of the toe contract abnormally, forcing the toe to bend downward and the middle joint of the toe to protrude upward.