The sexual development of man

Every phase of human life involves some degree of sexual development. Each phase involves different things that are involved or that change. Below is a description of sexual development from infancy to adulthood.


The baby does not experience erogenous zones. Touching the skin is in fact one big sense of touch. In the first year the mouth is sensitive because the baby drinks a lot and the hunger is satisfied. In the second year the child gains more control over his sphincter muscle. Whether or not you hold or let the stool pass gives you a pleasant feeling. From here, the toddler’s and preschooler’s sexual feelings will be further developed because more and more parts of the body are experienced as sensitive. Especially the erogenous zones are discovered.


The toddler begins to further develop his sexual feelings. Toddlers are still uninhibited and genitals are viewed and touched without suspicion. The child experiences this as pleasant, just like eating, drinking and sleeping. Every child must be able to carry out these explorations in order to continue their sexual development in a healthy way later. This is where major cultural differences emerge with regard to sexuality. These can vary from general openness, everything must be possible, to strict taboo. Both approaches are inadvisable. A middle path is preferable


The toddler now knows for sure that he is a boy or a girl. The crush on mother ends. The boy does not marry his mother but his girlfriend. Imitation behavior of father or mother is often seen. The boy gets mother’s approval when he imitates his father. After all, mother loves father. The reverse is also the case with girls.


Boys and girls play together until the sixth year. From the age of ten, boys and girls play separately. Yet they playfully seek contact by teasing, pushing and pulling each other, followed by running after each other screaming, catching each other, pulling away and then starting over again. From the age of twelve, this behavior changes into small, flirty teasing.

young people aged 12 -14 years

At this age they have to deal with physical changes and they may start to feel insecure about this. They compare their bodies with peers to see whether their own bodies are normal or abnormal. Deviating from the ideal norm of the age group in terms of physique, facial features and physical performance can be a source of distress. Sometimes this is about unimportant matters such as having curly or straight hair, a nose that is too big, etc. Hormones play a role here, and in a short time hair will form, breasts will develop and menstruation will occur.

Adolescents aged 14-17 years

Here you see a group of girls and a group of boys visiting each other. This happens naturally at school, or in a casual way at a sports club. In nightlife, people of the opposite sex are more deliberately sought out. In the beginning, some people will first feel unsure about: what should I say, or what does he or she think of me? By copying the art of friends and imitating this behavior, one will feel more confident. This way they get used to interacting with each other.

Adolescent 18-21 years

Acceptance of the sexually mature body. Self-focus diminishes and makes more room for the other. However, contacts remain focused on sexual attraction, but also on fun and sharing interests. This leads to more in-depth and meaningful personal contacts and they feel more involved in the well-being of others.

Young adults

They are looking for a permanent partner because they need deep and long-term bonds. These friendships are linked to eroticism and sexuality. The relationship becomes more intimate and the bond stronger. The merger of two identities that deepen each other, increasing the need for sustainability and loyalty. The lasting relationship leads to responsibility for each other. people want to take care of each other and share joys and sorrows. After this, a desire to have children may arise.

Middle age and early old age

In itself there is nothing wrong. However, reduced vitality and reduced testosterone in men can create uncertainty between men and women in the field of sexuality. Children are leaving home, early retirement age is approaching and people will have to adapt to all kinds of new situations.

Old age

Despite reduced vitality and less sexual desire, people have recently increasingly come to the conclusion that elderly people can still fall or stay in love. People who have been sexually active all their lives do not suddenly stop doing so. Many elderly people are just as sexually active into old age as young people are. Elderly people also enjoy each other purely physically and have a need to touch each other. Only society or their children are sometimes a bit critical of this.

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