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Congenital heart disease is one or more problems with the heart's structure that you're born with. Congenital heart disease, also called congenital heart defect, can change the way blood flows through...

Heart failure, sometimes known as congestive heart failure, occurs when your heart muscle doesn't pump blood as well as it should. Certain conditions, such as narrowed arteries or high blood pressure,...

Heart rhythm problems, or heart arrhythmias, occur when the electrical impulses that coordinate your heartbeats don't work properly, causing your heart to beat too fast, too slow or irregularly. Hear...

A breast lump can be described as a mass, growth, swelling, thickness or fullness. A breast lump can vary in the way it looks and feels. If you have a breast lump, you may notice: A dis...

Early detection of breast lumps is important. Conducting regular breast self-exams is a good way to get to know your breasts so that you can identify if your breasts change. If you notice n...

Everyone is born with a small amount of breast tissue. During puberty, women begin developing more breast tissue and men do not. Though breast cancer is most commonly thought of a disease that affects...

The main purpose of female breasts is to produce milk and nourishment for newborns. Breastfeeding can present many issues and concerns for moms, including pain, engorgement, pumping,&nb...

If you're concerned about developing breast cancer, you might be wondering if there are steps you can take to help prevent breast cancer. Some risk factors, such as family history, can't be changed. H...

Neurosurgeons at Mayo Clinic Health System are trained in the diagnosis and treatment of the entire nervous system, including your brain, spinal cord and spinal column, as well as the nerves throughou...

Almost everyone experiences at least one headache at some time during his or her life. According to the World Health Organization, about 50% of all adults have regular headaches. They can slow yo...