Klinefelter Syndrome is a chromosomal abnormality in male infants who are born with more than the normal X chromosome. As a result, patients often have abnormal physical growth, such as long arms and legs, being taller than children of the same age, large breasts, small penises, and may have intellectual development below the standard when entering school age, etc.
At present, the exact cause of the chromosomal abnormalities is still unknown. Doctors can only treat the symptoms so that patients can live a normal life. However, Klinefelter syndrome is a rare disease, occurring in only 1 in 660 male infants.
Symptoms of Klinefelter Syndrome
Usually, patients with Klinefelter syndrome do not have obvious symptoms during childhood, so most patients are detected or diagnosed by doctors when they reach puberty. However, some patients may have warning signs at different ages, as follows:
Infants and Toddlers
Children will have slow development in standing up, crawling, walking, speaking later or more quietly than normal, having weak muscles, and may have hernias and undescended testicles.
Childhood
Children with dyslexia often have learning disabilities ( dyslexia ) in reading, writing or spelling, especially in mathematics, have movement disabilities (dyspraxia), have problems in social interaction, are shy, lack self-confidence, have attention deficits, and have problems talking about their feelings.
teenager
The symptoms are mostly physical changes, including slower puberty than people of the same age, such as longer arms and legs, larger breasts than the average male adolescent, wider hips, slower growth of body hair, and small genitals and testicles.
Adulthood
Most adult patients experience infertility, erectile dysfunction, and low sex drive.
However, health problems in patients with Klinefelter syndrome may occur sooner or later and have different severity levels in each person.
Causes of Klinefelter Syndrome
Klinefelter syndrome is caused by an abnormality in the male chromosomes. Normally, males have 46 chromosomes (46,XY), but in patients with this condition, the number of chromosomes is 47 (47/XXY). The extra X chromosome causes various physical changes, including affecting sexual development and fertility. The exact cause of this chromosomal abnormality is unknown, but pregnant women over the age of 35 have a small risk of giving birth to a male baby with this syndrome.
In addition, Klinefelter Syndrome can occur in several different chromosomal abnormalities, including:
- One extra X chromosome in each cell is the most common form.
- An extra X chromosome in some cells causes Mosaic Klinefelter Syndrome, which results in fewer symptoms than the normal form.
- More than one X chromosome is added to each cell. This disorder is rare and has more severe symptoms than other types.
Diagnosis of Klinefelter Syndrome
The doctor will ask general information about the patient’s health and symptoms and perform a preliminary physical examination, focusing on examining the breasts, genitals, and testicles. If it is found that the patient has a tendency to have Klinefelter Syndrome, the doctor will confirm the diagnosis by testing the chromosomes or testing the hormone levels in the blood or urine. People with Klinefelter Syndrome usually show symptoms of physical abnormalities when they start puberty. Only a few people will show severe symptoms and be diagnosed in childhood.
Treatment of Klinefelter Syndrome
Klinefelter syndrome cannot be cured because it is a congenital chromosomal abnormality. Doctors treat patients based on their symptoms and individual needs to facilitate daily life, as follows:
Testosterone Replacement Therapy
This is a popular method used to relieve symptoms in patients with Klinefelter syndrome. Patients will receive testosterone or male hormones through oral administration, topical administration, or injection. The doctor will consider the appropriateness of each age, the location where the hormone is needed, and the severity of the symptoms so that the body can use the hormone to develop various systems, such as helping to make the voice deeper, having hair on the face and other parts, building muscle mass, reducing body fat levels, and also helping to relieve learning and emotional management problems.
This treatment should start when the patient enters reproductive age because if the treatment is started too late, the treatment results may not be as effective as they should be. In addition, taking this hormone for a long time in adults may help reduce the risk of osteoporosis, increase sex drive, and adjust emotional states. However, this method cannot cure infertility or sterility.
Other treatments
In addition to medication, patients with Klinefelter syndrome can be treated with other methods, such as speech and language therapy to improve the patient’s communication skills, or occupational therapy to develop personality and help with socializing. Doctors may also treat the patient’s symptoms, such as breast reduction surgery for large breasts, infertility counseling for those who want to have children on their own, or consulting with a psychiatrist or psychologist for advice on mental health issues, etc.
The most important thing in treating patients with Klinefelter syndrome is to regularly check their physical health along with their mental health because physical illnesses can also be the cause of mental health problems.
Complications of Klinefelter Syndrome
Chromosomal abnormalities in people with Klinefelter syndrome may increase the risk of other health problems, including:
- Immunodeficiency is a condition in which the body’s immune system attacks cells or tissues in the patient’s organs, causing various diseases such as lupus, rheumatoid arthritis, etc.
- Heart disease and blood clots
- Breast cancer, although less common in women, can also occur in men.
- Endocrine disorders such as diabetes
- Osteoporosis occurs in patients who have low testosterone levels for a long time.
- Taurodontism is a condition involving abnormalities of the teeth that cause the pulp chamber to enlarge, making it more susceptible to tooth decay. Patients should therefore have regular dental checkups with their dentist, as patients with Klinefelter syndrome are at high risk for developing this condition.
- Mental health problems, such as anxiety or depression
Prevention of Klinefelter Syndrome
Klinefelter syndrome cannot be prevented because it is a genetic disorder. However, if the mother becomes pregnant after the age of 35, she should consult a doctor before pregnancy to plan for having children and assess the possible risks. In the event that the child has some abnormal symptoms similar to those of Klinefelter syndrome, the child should be taken to see a doctor for diagnosis. If the child receives timely treatment, the child will have complete and healthy development and reduce various complications.
