New studies and research have reported the impact of one parent's narcissism on the personality and growth of children, where researchers observed that the experience of having a narcissistic parent has clear consequences on the child's mental and emotional development and affects later in the youth stage.

Among these researches is "The multigenerational clinical history of a family with several individuals carrying narcissistic personality disorder," published in the International Journal of International Sciences and Social Research.

The research study stated that having one parent as a narcissist can negatively affect the child through their self-perception, attachment style, romantic relationships, and emotional stability.

It pointed out that parental narcissism "can be an obstacle to healthy attachment and the possibility of deep and lasting impacts on self-esteem in adulthood."

Another study informally linked narcissistic parenting with childhood experiences related to "low confidence, feelings of shame, commitment difficulties, and poor relationship strategies"; as narcissists lack many essential parenting skills and abilities.

"The narcissist does not have the ability to be a good enough parent," said Mary Ann Little, author of the book "Childhood Narcissism: A Strategy to Raise Unselfish Children."

Little mentioned in her book several traits that characterize narcissists – and agree with the research – that affect the child:

- Selfishness and self-centeredness, meaning that attention is primarily directed inward, and as a result, narcissists have less emotional energy available for the child; since children need nearly unlimited supplies of attention and affection, the narcissistic parent is ill-equipped to provide adequate care, and the risks threatening the child's growth due to this include feelings of insecurity, self-doubt, and insecure attachment.

- The need for narcissistic inflation makes the child a potential means to serve the parent's needs, where they suffer from a continuous need for achievement in an attempt to please demanding parents to maintain their image before society and family.

- Narcissists are usually insensitive and lack responsive caregiving abilities unless the child offers something that benefits the parents, which translates into low self-confidence and feelings of unworthiness, creating a state of emotional hunger and low self-esteem.

- The narcissistic parent is preoccupied with their self-image and is often unable to tolerate "bad" behavior typical of the stage where the child is more active and prone to many mistakes; the parent easily feels frustrated by the child’s misbehavior, which makes them tend more toward harsh actions towards the child, causing the child to feel the need for perfection, an inability to please others, anxiety, or withdrawal.

- Narcissists show an excessive need to control those around them, and excessive guidance, training, and criticism hinder their children by limiting their experience of self-directed independent behavior, creating a child who lacks autonomy.

Little confirms in her article: "The narcissist’s focus on themselves and strict commitment to selfish gratification does not provide a good foundation for parenting. It is noteworthy that narcissists may lack the ability to put the child’s needs before their own unless it serves some form of narcissistic satisfaction."