While it may seem like an eternity to them, these late developers eventually catch up. These are all normal growth patterns that don t indicate a glandular problem and require no treatment. Estimating height Doctors can make modest predictions about when and how much growth will occur in each adolescent. If you add the parents heights and divide by two, add three inches for a boy and subtract three inches for a girl, a rough estimate of genetic potential can be made. Physicians can also look at the growth charts which indicate where your teen falls percentagewise in relationship to others at the same age of childhood.
Girls get a jump-start on boys when it comes to growth.
They begin to grow taller before boys and they finish growing before boys. The average gain is three inches during that year. Boys grow later but faster Boys growth is more dramatic, but it usually happens later in puberty, closer to age 14. While most grow about 4 inches in a year during their growth spurt, some may shoot up 5 or 6 inches. All together, they might gain 8 inches.