Extensors Tendonitis
Pain in the foot’s dorsum can also result from inflammation of the foot extensors (tendinitis of the foot extensors). [7] In most cases, the hallux extender.
Tendinitis is an inflammation of the tendon; in this case, the hallux extensor, which is the extensor of the first toe (big toe).
In addition to tendonitis, hygroma (bone reaction coated with hard skin) is frequent in the cause of pain in the back of the foot.