An injury or arthritis most likely causes pain outside the knee. A doctor can determine the cause based on your other symptoms and the results of imaging tests. Pain on the outer (or lateral ...

Such breast changes often cause mild pain or tenderness and may produce a small lump or cyst behind the nipple, just as is happening to your son. Reassure your son that these are normal changes ...

Lower abdominal pain is commonly caused by trapped gas or indigestion. Less commonly, lower abdominal pain can be a symptom of a more serious issue, like a kidney infection or a twisted bowel. Lower ...

Pain behind the ear could be related to the ear itself or nearby structures that share a nerve supply with it. Several possible causes of pain behind the ear, including jaw inflammation, a dental ...

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