Preschoolers
Learning Center
Child abuse
Child abuse includes physical, sexual, emotional and medical abuse, as well as neglect. Learn about signs, risk factors, how to get help and prevention.
Nasopharyngeal carcinoma
Nasopharyngeal carcinoma is cancer that occurs in the nasopharynx, which is located behind your nose and above the back of your throat.
TMJ disorders
Treatment options for pain in your jaw joint and in the muscles that control jaw movement can include pain management, medical therapies and surgery.
Anal fissure
Learn what causes a tear in the anus and how to prevent or treat this often painful condition.
Rheumatoid arthritis
This chronic inflammatory disorder can affect more than just your joints. It can also damage your skin, eyes, lungs, heart and blood vessels.
Insomnia
This disorder can make it hard to fall asleep, hard to stay asleep or both, even though you have the chance for enough sleep. It can drain your energy.
Paraneoplastic syndromes of the nervous system
This group of conditions affects people who have cancer and occurs when parts of the immune system attack parts of the nervous system.
Canker sore
Canker sore — Learn about the causes, treatment and prevention of this painful mouth sore.
Premature birth
Here's what you need to know about caring for a premature baby and the possible health problems of a preterm birth.
Spontaneous coronary artery dissection (SCAD)
A torn blood vessel in the heart can cause a heart attack. Learn about the diagnosis and treatment of this medical emergency.
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