The most common cause of bleeding when you brush is gingivitis, and infection of the gums. Untreated, gingivitis can lead to more serious forms of gum disease that will cause bone and tooth loss. When you see that your gums are bleeding when you brush, you should brush and floss more, not less.
When does puberty happen? There is no set age for puberty so try not to worry if your body changes earlier or later than your friendsâ. For girls, puberty often happens between 10 and 16,1 and for boys between 10 and 18.2. Remember that changes will happen over time.
Boys develop and mature at different rates. Even if your friends have started to mature before you, don't worry; it's totally natural and there is nothing to be concerned about. Although the average age at which boys start puberty is 12 to 13 it can start at anywhere from 9 right up until 16.Puberty lasts around 5-6 years on average for boys. Most boys have finished puberty by the time they are 18-20.There are many factors involved and remember everyone is different.emales generally start puberty from the age of 9 -14 years old. however puberty varies in every case. Typically, girls start noticing the changes that occur with puberty be â¦ tween the age of 9 and 11.