What causes the growth of bones in thickness and length?

The growth of the whole organism occurs from birth to 20-24 years. Growth occurs under the influence of the hormone somatropin. Bones are also susceptible to the action of this hormone. But in addition to the hormone, vitamins and minerals are needed. Without them, bones will grow, but they will be very fragile. Doctors recommend that children take calcium and vitamin D, which helps calcium absorption. There are rare diseases when somatropin is not produced by the body. Then it must be taken in the form of medications to restore growth.