Conjoined twins
If an early embryo only partially separates and two babies develop, they remain physically connected…
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First Aid
Constipation in children
Learn what could cause constipation in your child, what you can do to prevent it…
繼續閱讀Contact dermatitis
Contact with certain substances, such as poison ivy, skin lotions and detergents, can cause an…
繼續閱讀Contraceptive implant
Learn about the benefits, risks and effectiveness of this type of long-acting, reversible birth control.
繼續閱讀Convalescent plasma therapy
Convalescent plasma therapy uses blood from people who've recovered from an illness, such as COVID-19,…
繼續閱讀Coping with anxiety: Can diet make a difference?
Coping with anxiety is a challenge. Eating habits may play a role.
繼續閱讀Coping with pain after breast surgery
Pain is common after mastectomy and other breast operations. Find out what causes it and…
繼續閱讀Copper IUD (ParaGard)
This intrauterine device offers a hormone-free option for long-acting, reversible birth control.
繼續閱讀Core exercises: Why you should strengthen your core muscles
Core exercises strengthen your abs and other core muscles for better balance and stability.
繼續閱讀Cornea transplant
This procedure uses donor tissue to restore vision and reduce pain from cornea disease. Our…
繼續閱讀Corns and calluses
Find out more about these hardened areas of skin that often affect the feet and…
繼續閱讀Coronary angiogram
Learn more about this heart disease test that uses X-ray imaging to see the heart's…
繼續閱讀Coronary angioplasty and stents
Coronary angioplasty and stents can open clogged blood vessels that deliver blood to heart muscles.
繼續閱讀Coronary artery bypass surgery
This major heart surgery, also called CABG, creates a new path for blood to flow…
繼續閱讀Coronary artery disease
Know the warning signs of this common heart condition often caused by clogged, narrowed arteries…
繼續閱讀Coronary artery disease: Angioplasty or bypass surgery?
The best treatment for coronary artery disease depends on the circumstances.
繼續閱讀Coronary artery spasm: Cause for concern?
This sudden, temporary squeezing of an artery reduces blood flow to the heart. Know the…
繼續閱讀Coronary calcium scan
This heart CT test can show calcium deposits in the blood vessels. Know how the…
繼續閱讀Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about…
繼續閱讀Coronavirus: What is it and how can I protect myself?
Coronavirus disease 2019 (COVID-19) is caused by a virus that spreads between people. Find out…
繼續閱讀Corticobasal degeneration (corticobasal syndrome)
Learn about this rare disease that affects brain cells. The disease can make it hard…
繼續閱讀Cortisone shots
These shots can help relieve pain, swelling and irritation. Potential side effects generally limit the…
繼續閱讀Cosmetic surgery
The goal of this type of surgery is to improve your appearance. It can involve…
繼續閱讀Cough headaches
Often triggered by coughing and other types of straining, these headaches can be harmless or…
繼續閱讀Coughing more after quitting smoking: What's the deal?
If you cough more than usual after you give up cigarettes, find out what it…
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