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Foot swelling during air travel: A concern?
Swelling of the leg or foot while flying is common and usually harmless.
Heart rate: What's normal?
A normal resting heart rate for adults ranges from 60 to 100 beats per minute. A heart rate above or below that may signal a problem.
Ocular migraine: When to seek help
Flashes of light, zigzagging patterns and temporary blindness — what does it all mean?
Macrocytosis: What causes it?
Enlarged red blood cells (macrocytosis) can be due to many factors.
Priapism
Understand the symptoms, possible causes and treatment of prolonged erection of the penis, including when to seek emergency care.
VLDL cholesterol: Is it harmful?
Like LDL cholesterol, very-low-density lipoprotein (VLDL) cholesterol is considered a type of 'bad' cholesterol.
What's the difference between H1N1 flu and influenza A?
H1N1 flu is a subcategory of influenza A.
Discolored semen: What does it mean?
Find out what causes discolored semen.
Male hypogonadism
This condition affects the ability of men's bodies to produce enough testosterone or enough sperm or both.
Retrograde ejaculation
Learn about the symptoms and treatment options for this condition that can cause male infertility.
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