People with sickle cell go through all the stages of puberty like people without sickle cell. Usually, the age you start puberty is similar to others in your family. However, people with sickle cell often go through puberty at an older age.
It can be tough not being as tall or as developed as other teenagers your age. Many people (not just people with sickle cell) go through puberty at an older age. You should not feel bad about yourself because your body is changing more slowly than others. It is normal to feel awkward about your body at times, but you should not constantly worry about it. If you are concerned about your pubertal development, talk to your doctor.