KS does not usually cause any obvious symptoms early in childhood, and many boys and men often do not realise they have KS until they go through puberty. In these instances, puberty may be late or incomplete. Sometimes, KS may only be diagnosed in adulthood due to infertility.
The features of KS can vary and it is important to note that not all the features described will be seen in your child.
Most boys with KS can expect to live long and healthy lives.
The typical features of KS in an adult (if untreated) are:
Children and adolescents with KS may experience:
In adulthood, in addition to the main typical features, untreated adults may have:
Hypogonadism. Individuals with KS often have this condition where men are unable to produce enough of the male hormone, testosterone, for the body’s needs.Testosterone is important for normal reproductive and sexual function, and physical changes that happen during male puberty such as development of the penis and testes, and facial and body hair. It also helps the growth of bone and muscles.Hence, men with KS can have underdeveloped testes, low libido (sex drive), infertility and osteoporosis (thinning of the bones).Almost all men with KS will be infertile (sterile), which means they will be unable to father a child without medical help.
The following problems can also be seen in individuals with KS, and need to be monitored for and treated if present:
Subscribe to our mailing list to get the updates to your inbox