1, ankylosis of the first joint of the little toe
The decrease of the activity of the first joint of the little toe will aggravate the friction between shoes and the little toe and cause toe injury. The toes of the little toes are mostly accompanied by joint stiffness.
2. The external "bulge" of the phalanx of the little toe increases the friction on the outside of the nail, thus forming two toenails.
3, little toe varus
When walking, it produces high pressure and friction on the outside of the little toe, which leads to licking the toe.
Extended data:
The two petals of the little toenail are toes, also called "compound nail" and "toenail". The petaloid nail is only a manifestation, not a genetic content. Whether it exists or not will not be beneficial or harmful to health, so don't worry too much.
The legend of toes.
According to legend, around the end of Yuan Dynasty and the beginning of Ming Dynasty, due to frequent wars, Henan, Hebei, Shandong and other places were deserted and inaccessible.
In the Ming Dynasty (about the reign of Zhu Yuanzhang), in order to improve this situation, it was decided to "emigrate and settle the fields". After decades of forced migration, a large number of Shanxi people have been moved to the Central Plains.
Legend has it that Shanxi people who were forced to migrate gathered under a big pagoda tree in Hongdong County, and the soldiers in charge of escort cut a knife on everyone's little toe as a sign that the descendants of immigrants in Hongdong County, Shanxi Province knew each other and sought their roots.
This has also become the most popular origin of petaloid nail among the people.