Beginning from the day of conception even after birth and till death people go through many changes in life throughout various stages. A child first grows rapidly and they enjoy every drop of their life as they grow. But everything doesn’t feel to be normal as puberty begin. Although it was expected it feels so different and life will change. The word puberty is derived from the Latin word “ Pubertas ’’ which means the age of manhood. It refers to the physical rather than behavioral changes which occur when the individual becomes sexually mature and is capable of producing offsprings. Puberty is defined as a sequence of events by which the individual is transformed into a young adult by a series of biological changes. Adolescence begins with the onset of puberty. Adolescence is a stage of human development following early childhood. It commonly ends with the beginning of puberty, but may also be defined as ending with the start of teen age year. Being prepubescent is not being the same thing as being pre-adolescent. Instead, pre-pubescent is a term of boys and girls who have not developed secondary sex characteristics, while pre–adolescents girls are generally defined as those ranging from 10 – 14 year. The point at which a child becomes a pre-adolescents is defined by the onset of puberty or the beginning of the teenage stage. While known as pre-adolescents in psychology, the term pre-teen, preteenager or tween are common in every day used. Adolescents children in fact have a different view of the world from younger children in a more significant way. Typically there is a more realistic view of life then instance fantasy-oriented world of earliest childhood. Adolescents have more mature sensible, realistic thoughts and actions: ‘The most “ sensible ” stage of development for the child is much less then pre-adolescent stage ’.Adolescents may well view human relationships differently. Alongside that, they may begin to develop a sense of self-identity, and to have increased feelings of self-identity, and to have increased feelings of independence. Many pre adolescents will often start to question their home life and surroundings around this time and they may also start to form opinions that may differ from their upbringing in regards to issues such as politics, religion, sexuality, and gender roles. It is the period of rapid physical, psychological, emotional, and behavioral changes. In physical changes includes growth in weight and height, breast changes like the pigmentation of the areola , enlargement of breast tissue and nipple, the appearance of pubic hair, activation of axillary sweat glands, the appearance of axillary hair, the onset of menstruations. Emotional changes include depression, anger, irritability, fear, and anxiety. Another study shows that 28% do not like the changes due to puberty, in their body. On the other hands, studies concluded that reproductive health is ignored and queries go unanswered. Adolescence is a period of transition between childhood and adulthood. A time of physical, cognitive, social and emotional maturation as a boy prepare for manhood. Girls are future mother going through the puberty can challenging time for any girl. The precise boundaries for adolescents are difficult to define, but this period is customarily viewed as beginning with the gradual appearance of secondary sexual characteristics. Pre-adolescence which literally means, “to grow into maturity”.Therefore pre-adolescents possess some knowledge about reproductive health and effective education to encourage healthy behavior. The most dramatic changes related to adolescence are the physical changes that occur as a part of the pubertal process. Puberty includes maturational, hormonal and growth process that occurs when the reproductive organ begins to functions and the secondary sexual characteristics develop during puberty, growth is disorganized confusing and rapid, compared to the relatively stable earlier period of childhood. When pubescent children are not in form about changes that take place at puberty ,it is traumatic to undergo these changes and may develop unfavorable attitude towards these changes.