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Klinefelter syndrome
This genetic disorder occurs when a male is born with an extra copy of the X chromosome and may result in low testosterone production and infertility.
Ataxia
Often caused by an underlying condition, this loss of muscle control and coordination can impact movement, speech and swallowing.
Down syndrome
Down syndrome is a genetic disorder caused when abnormal cell division results in extra genetic material from chromosome 21.
Vaginal agenesis
In this rare condition that occurs before birth, the vagina doesn't develop and the uterus may only develop partially or not at all. Learn about treatment.
Atypical hyperplasia of the breast
Learn how a diagnosis of atypical lobular hyperplasia or atypical ductal hyperplasia affects your risk of breast cancer and what you can do.
Atrial septal defect (ASD)
This heart problem that is present at birth causes a hole between the heart's upper chambers. It can be treated.
Delaying your period with hormonal birth control
Delaying your period is possible if you use an extended or continuous method of birth control. Find out how you can have more control over your menstrual cycle.
Ductal carcinoma in situ (DCIS)
Noninvasive breast cancer often has no signs or symptoms. Find out how doctors diagnose DCIS and learn about treatment, including mastectomy and lumpectomy.
Rhabdomyosarcoma
This rare soft tissue cancer affects children more often than adults. Treatment may include surgery, chemotherapy and radiation therapy.
Pregnancy and COVID-19: What are the risks?
Know how COVID-19 might affect pregnancy, labor and delivery, and breastfeeding. And get the facts about the safety of COVID-19 vaccines.
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