Here are the main things about puberty in girls that might already be happening, or that will happen soon. It's okay if these things haven't happened yet. Changes usually happen in the order listed below, but this may not be in the order that they happen to you.
One sign of puberty in girls is "growing really fast"
One thing you'll notice is that you may grow faster than you did during childhood. This is known as a growth spurt. This may not be as noticeable as the breast changes and pubic hair growth. First, you may notice your feet and hands getting bigger. Next, the arm and leg bones grow, making you taller. This may be an awkward time until the rest of the body catches up. Once it does, your body will be more proportional. You may gain some weight to match the increase in your bone size.
Another sign of puberty in girls is "getting breasts"
Your breasts develop in stages. At first you may notice what feel like little "buds," or swellings, under your nipples. After that, your breasts will gradually get bigger and fuller, and may become a little sore. One breast may grow more than the other at first, but they'll even out later (most women have one breast that is larger than the other, but the difference is usually small). Remember, every girl is different. How large or small your breasts become depends on the physical, genetic traits in your family. Full breast development takes two to three years.
Puberty In Girls—Growing body hair
Soon, curly hair will start growing in the pubic area, the area that extends from your lower stomach to between your legs. In some girls, pubic hair may appear before breast development. At first, this hair is soft and there's not much of it. Later, the hair grows longer and becomes a little kinky and curly. Although it starts growing between the legs, it eventually covers the entire pubic area and may include the upper, inner thighs. This usually takes two to three years. A few months after pubic hair begins to grow, hair will also grow under your arms.
Puberty In Girls—A more 'womanly' shape
As your pelvis (the large bone across your hips) begins to grow, your hips get wider, your breasts develop (see above) and your waist gets smaller. In other words, girls bodies become softer and more shapely. Some girls also gain weight quickly during this time.
Puberty In Girls—Increased sweating
Your sweat glands will become larger and more active, and you'll sweat more. This may happen even before your breasts develop.
Puberty In Girls—Oily skin and hair
During puberty, the pores in your skin produce more oil, especially on your face. This can cause acne. You may have to wash your hair and face more often now that you're going through puberty.
Puberty In Girls—Changes in your genitals
Your genitals also grow and change during puberty in girls. Your outside parts (the vulva) are enclosed by two sets of "lips." The larger lips have hair; the inner, smaller lips don't. These increase in size a little bit. Inside your body, the vagina is getting longer and the uterus is getting bigger.
Puberty In Girls—Discharge
This is a word for fluid that's produced by your body to moisten and cleanse the vagina. Before you start your period, you'll probably notice yellow or white stains inside your underwear. This is natural moisture from the vagina. It's perfectly normal, and it's a sign that menstruation will probably start in about 6–18 months.
The discharge may be heavy or barely noticeable both are normal. However, if the discharge has a bad smell or you have any pain, soreness, or itching in the genital area, it may be a sign of infection. In this case, you should see a doctor.
Puberty In Girls—Your period
Menstruation can be very unpredictable for the first two years. It typically takes 1–2 years for cycles to develop, so you may not be regular for a while. The next section will tell you all about menstruation.