
9 Crucial Signs of Puberty in Girls Parents Shouldn't Overlook
Puberty is a significant milestone in a girl’s life, characterized by hormonal shifts that lead to comprehensive physical, emotional, and psychological changes. How can parents recognize when their daughter is entering this unique phase? Dr. Vu Thi Mai from Dr. Marie Obstetrics and Gynecology Clinic offers insights and explains the 9 key signs of puberty in girls that all parents should be aware of.
When Does Puberty Typically Begin in Girls?
Generally, most girls start puberty between the ages of 8 and 13. According to Dr. Vu Thi Mai, the onset of puberty is influenced by various factors, with nutrition and genetics playing significant roles:
- Some girls may begin puberty before age 8 (known as precocious puberty).
- Others may experience it after age 13 (known as delayed puberty).
9 Signs of Puberty in Girls Parents Need to Know
Breast Development
During puberty, the breast area undergoes significant changes:
- Breast tissue will enlarge, and development may initially be asymmetrical (one side developing before the other).
- Tender lumps, known as breast buds, may appear beneath the nipples.
- Nipples may become more prominent and potentially slightly itchy.
- The areola (the darker area around the nipple) will gradually widen, and in some cases, fine hairs may grow around it.
Growth of Pubic and Underarm Hair
The body begins to produce androgen hormones, leading to:
- Hair growth in the pubic region, underarms, and on the legs and arms.
- Initially, this hair is fine, soft, and straight.
- It gradually becomes thicker, coarser, and curlier.
Vaginal Discharge
Approximately 6-12 months before the first menstrual period, increased estrogen levels in the body cause:
- The vagina to produce a clear or whitish discharge.
- This discharge is typically odorless or has a very mild odor.
Onset of Menstruation
This is the most definitive sign of puberty:
- The reproductive organs begin their maturation process.
- Initial menstrual cycles may be irregular, which is normal.
- Symptoms such as abdominal cramps, breast tenderness, or back pain may occur.

Significant Height Increase
During puberty, girls typically experience a rapid growth spurt before menarche. Growth slows down after menstruation begins. They may gain an additional 17-18% of their pre-pubertal height.
Body Fat Redistribution and Pelvic Development
Changes in body shape become apparent:
- Fat deposition increases in areas such as the breasts, hips, abdomen, and thighs.
- The pelvis widens, leading to a more defined waist and fuller hips and buttocks.
Appearance of Acne Hormonal fluctuations cause the sebaceous (oil) glands to become more active. As a result, girls may experience:
- Clogged pores.
- Acne breakouts on the face, back, and chest.
Increased Body Odor
- Sweat glands become more active.
- Body odor becomes more noticeable, particularly in the underarm area.
Noticeable Psychological and Emotional Changes
Significant shifts in emotions and behavior may include:
- Increased moodiness, stubbornness, or heightened self-consciousness.
- Resistance to strict parental oversight; may become easily agitated or irritable.
- Developing an interest in peers of the opposite sex.
- Feelings of sadness, anxiety, or despondency if not met with sensitive understanding and empathetic support from parents.
Precocious Puberty in Girls: What Parents Need to Do
Precocious puberty occurs when the signs mentioned above appear before the age of 8. This can:
- Potentially impact the child’s final adult height.
- Causes psychological distress, leading to low self-esteem, social withdrawal, and, in some instances, depression.
Puberty is a crucial yet often challenging period in every young girl’s life. When these changes occur prematurely, girls can feel confused and require exceptional support from their families.
In this situation, parents’ role as a steadfast pillar of support, ready to listen and understand their child’s concerns, is paramount. Instead of letting their child navigate these transformations alone, parents should proactively seek information and accompany their child on their journey to maturity.

Dr. Marie - Every Stage Of Woman
Dr. Marie Obstetrics and Gynecology Clinic is proud to introduce its Adolescent Health Check-up Package – a comprehensive care program specifically designed for young girls transitioning into puberty. With our team of experienced and dedicated medical professionals, we are committed to:
- Providing in-depth consultations on natural physiological changes.
- Addressing all queries and concerns with sensitivity and scientific accuracy.
- Offering psychological support to help girls build body confidence.
- Facilitating early diagnosis of any pubertal abnormalities.
We invite parents to call 1900 55 88 82 for more detailed information about our Adolescent Health Check-up Package and to give their daughters the invaluable gift of health, preparing them for a healthy future.
