Second trimester
Learning Center
Peeling skin
Overview covers definition and possible causes of peeling skin. Includes photos
White tongue
White tongue: Symptom — Learn about the definition and possible causes of this usually harmless symptom.
Brain lesions
Learn more about these abnormal areas sometimes seen incidentally during brain imaging.
Unexplained weight loss
Unexplained weight loss has many causes — some serious. Find out when losing weight without trying calls for a medical evaluation.
Urine odor
Urine that smells odd might point to an underlying disease or condition.
Frequent urination
Learn what can make you urinate more than usual and what signs might mean it's because of something serious.
Frequent bowel movements
Many things can trigger frequent bowel movements. Find out what may be causing your extra bathroom trips and when it's time to call your health care provider.
Petechiae
Overview covers definition, possible causes of this skin symptom caused by bleeding of tiny blood vessels.
Vomiting blood
Vomiting blood can be a symptom of a number of serious conditions. Find out what it could mean.
Nausea and vomiting
Motion sickness and drinking alcohol are among the many common causes of nausea and vomiting. Serious diseases can also have this effect.
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