For both boys and girls, these changes include a growth spurt in height, growth of pubic and underarm hair, and skin changes (e.g., pimples). Boys also experience growth in facial hair and a deepening of their voice.


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Changes during Teenage in Boys and Girls:

During the teenage years, both boys and girls go through several physical, emotional, and social changes as they transition from childhood to adulthood. However, there are some differences in the changes experienced by boys and girls.

1. Physical Changes:
- Boys: Boys experience a growth spurt during their teenage years, which leads to an increase in height and weight. They also develop broader shoulders, facial and body hair, deeper voices, and their muscles become more defined.
- Girls: Girls also go through a growth spurt but typically earlier than boys. They experience breast development, widening of hips, the onset of menstruation, and an increase in body fat.

2. Emotional and Cognitive Changes:
- Boys: Boys may become more independent, assertive, and focused on establishing their identity. They may also experience mood swings, increased aggression, and risk-taking behavior.
- Girls: Girls may go through emotional ups and downs, increased self-consciousness, and a stronger desire for social acceptance. They may also develop stronger verbal and communication skills.

3. Social Changes:
- Boys: Boys tend to form stronger peer groups, engage in more competitive activities, and demonstrate increased independence from their families. They may also start showing interest in dating and romantic relationships.
- Girls: Girls often prioritize friendships and social connections, and they may engage in more collaborative and cooperative activities. They may also develop a stronger interest in romantic relationships and dating.

Cause of Acne/Pimples During Puberty:

During puberty, both boys and girls are susceptible to developing acne or pimples. This is primarily caused by hormonal changes in the body, specifically an increase in androgen hormones such as testosterone.

1. Sebaceous Glands:
- During puberty, the sebaceous glands in the skin become more active and produce more sebum (oil). This excess oil can clog the pores and lead to the formation of pimples.

2. Increased Skin Cell Shedding:
- Hormonal changes during puberty can also increase the shedding of dead skin cells. When these cells mix with the excess oil, they can block the hair follicles and contribute to the development of acne.

3. Bacteria:
- The presence of bacteria called Propionibacterium acnes on the skin can also contribute to the formation of acne. These bacteria thrive in the oily environment created by the sebaceous glands.

4. Genetics and Lifestyle Factors:
- Genetics can play a role in determining an individual's susceptibility to acne. Additionally, certain lifestyle factors such as poor hygiene, excessive sweating, and a diet high in processed foods and sugar can worsen acne symptoms.

Conclusion:
During the teenage years, both boys and girls experience significant physical, emotional, and social changes. These changes are primarily driven by hormonal fluctuations during puberty. Acne is a common issue during this time, caused by increased oil production, skin cell shedding, bacterial presence, genetics, and lifestyle factors. It is important to maintain good hygiene, follow a healthy lifestyle, and seek appropriate treatment if acne becomes severe or persistent.