Turtle nail refers to the back nail of the animal turtle, which is salty and cold in Chinese medicine and has the properties of nourishing yin and submerging yang, softening hardness and dispersing knots, as well as having the effect of reducing bone vapor and tidal fever. It can be used to treat dizziness, dizziness, swelling and pain in the eyes caused by hyperactivity of liver and yang, as well as to treat twitching of the limbs, and also to treat acute and chronic fright in children. The turtle nail itself has the effect of softening and dispersing nodules and can treat nodules that appear in several parts of the body, such as thyroid nodules, breast nodules, uterine fibroids in women, hard nodules in the corpus cavernosum of the penis in men, as well as treating lymphadenitis and lymphatic tuberculosis. The turtle nail also has the effect of nourishing yin and moistening dryness, and can treat yin deficiency type of disease, often such patients manifest as hot flashes in the palms of the hands and feet, sleep at night will sweat more, called night sweats, often dry mouth, thirst, the tongue of such patients is red, the tongue rarely has tongue coating, for such patients, the turtle nail also has a very good effect of retreating bone steam hot flashes, nourishing yin. Soft-shelled turtle nail also contains a variety of nutrients, including vitamins and amino acids, which can be said to have good nutritional value for the human body.