Is it normal to have tubular breasts at the age of 13?

Yes, it is normal for some individuals to have tubular breasts at the age of 13, as breast development varies significantly during puberty. Tubular breasts, characterized by a narrow base and a more elongated shape, can occur due to genetic factors and hormonal changes. It's important to remember that breast shape and size can continue to change throughout adolescence, and concerns about breast development should be discussed with a healthcare professional if they arise.