Mental health
Learning Center
Nondirected living-donor transplant
Nondirected living donor — Find out what becoming a good Samaritan, also called nondirected, living organ donor means to transplantation.
Nephrectomy (kidney removal)
Learn about surgery to remove all or part of a kidney.
Myomectomy
This surgical procedure to treat uterine fibroids tries to preserve fertility using a variety of approaches.
Mohs surgery
Find out what to expect during this skin cancer surgery that involves removing thin layers of skin until only cancer-free tissue remains.
Mitral valve repair and mitral valve replacement
If you have a leaky or stiff mitral valve, you may need heart surgery. Learn about the different procedures used to repair or replace this valve.
Meditation
Find out more about this mind-body practice and its possible health benefits.
Mastectomy
Learn about this operation to remove the breast tissue from one or both breasts. Find out about risks, results and what you can expect.
Lung transplant
Learn what's involved in this major surgery that replaces a diseased or failing lung with a healthy lung, and what you can expect after the procedure.
Lumpectomy
Learn what to expect from this breast-conserving surgical procedure.
Living-donor transplant
This surgery uses a living donor's organ, such as a kidney or portion of a liver, to replace another person's organ that no longer works properly.
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