Claw foot can develop as a result of several different conditions. For example, you may develop claw foot following ankle surgery or ankle injuries.
Nerve damage can weaken your foot muscles, leading to imbalances that force your toes to bend awkwardly. Inflammation can also cause your toes to bend into a claw-like position.
Underlying disorders that can cause claw foot include:
-Rheumatoid arthritis (RA)
-Cerebral palsy (CP)
-Charcot-Marie-Tooth disease (CMT)
In some cases, the underlying cause of claw foot is never identified.
Read more at: https://www.healthline.com/health/claw-foot