The keloid usually grows gradually during the proliferative phase, because the keloid itself has the characteristic of infiltrative growth, so it will go beyond the original trauma, while it will gradually stop growing during the stable phase. In addition, factors such as personal constitution, treatment time, and whether or not to take effective treatment will affect the growth of keloid scars, as follows: 1. Personal constitution: for those who belong to keloid scars, keloid scars are likely to grow, and edema and even infection are likely to occur at a later stage; 2. Treatment time: if active treatment is carried out before the formation of keloid scars, or when keloid scars are formed, it can inhibit the growth of keloid to a certain extent. If the corresponding treatment is carried out during the rapid growth period of the keloid, the scar is likely to recur, so it is recommended to carry out the corresponding treatment during the stable phase of the scar. If no therapeutic intervention is performed, the keloid will become larger and expand to the surrounding area; 3. Whether or not effective treatment is taken: If effective treatments are taken after the keloid appears, such as laser treatment, radiation therapy, surgery, and medication, it will help to inhibit the growth of the keloid. If the treatment is inappropriate or no effective treatment is taken, the keloid will continue to grow, but will stop growing at a certain point.