There are a few parts of the human body that do not grow significantly from birth to death:
The nails: The nails, which are made of a protein called keratin, are formed in the nail matrix, a region at the base of the nail. The nails grow continuously, but the rate of growth slows down with age.
The hair: Like the nails, the hair is made of keratin and grows continuously. However, the rate of hair growth also slows down with age, and some people may experience hair loss as they get older.
The nose and ears: The nose and ears are made of cartilage, a flexible and resilient connective tissue. While the nose and ears may grow slightly during childhood and adolescence, they do not continue to grow significantly throughout the rest of life.
The teeth: The primary (baby) teeth, also known as deciduous teeth, are replaced by the permanent teeth, or adult teeth, during childhood and adolescence. Once the permanent teeth are in place, they do not continue to grow