DEAR DOCTOR K: My father recently saw his doctor, complaining of fever, fatigue, joint pain and rashes. His doctor suspects vasculitis. What is vasculitis? How is it diagnosed and treated?
DEAR READER: Vasculitis is an inflammation of the blood vessels. This inflammation can be severe enough to reduce blood flow to tissues and organs. We don't know for sure what causes it, but scientists believe it is an autoimmune disease.
DEAR DOCTOR K: I recently had an electrocardiogram and my doctor gave me a copy of the tracing. Can you tell me what I'm looking at?
DEAR READER: When the 20th century began, more than 100 years ago, doctors had no way of looking inside the body of a living person. Yet we knew from autopsies of people who had died that all of the normally invisible internal organs could become diseased. So the search was on for ways to "see" inside the body.
DEAR DOCTOR K: I'm a man in my 60s. I've been taking a calcium supplement to protect my bones, but I recently read that men shouldn't take calcium supplements. Why not?
DEAR READER: I wish I could give you a clear answer. Several recent studies have raised a question about whether regular use of calcium supplements might be bad for the heart. The bottom line: It's too early to know if this risk is real.
DEAR DOCTOR K: Today at the playground my toddler bit another child. How can I make sure she doesn't do this again?
DEAR READER: Lots of toddlers between 1 and 3 years go through biting and/or hitting stages. Children at these ages cannot yet express in words their feelings, so they may bite or hit parents, children or caregivers to get attention or to express frustration. These young children also may bite just to see what kind of reaction it provokes.
DEAR DOCTOR K: I have mild back pain. I sit at a desk all day and tend to slouch. My mother says that sitting up straight may help. Is she right?
DEAR READER: I hope it's true. Otherwise, my mother (like yours) was wrong. And I think it is true.
DEAR DOCTOR K: I yawn a lot. My friend said this is a sign my brain isn't getting enough oxygen. Is that true?
DEAR READER: Most of us yawn more often in the early morning and late evening. Does it mean you're tired? Bored? Not getting enough oxygen? It turns out that we actually know very little about why we yawn.
DEAR DOCTOR K: Can you explain the importance of glycemic load, as opposed to glycemic index, when judging carbohydrates?
DEAR READER: Carbohydrates, along with proteins, fats, vitamins, minerals, water and oxygen, are nutrients: We need them to live and grow. But even though we need carbohydrates, there still are carbohydrate-rich foods that are "good carbs" and "bad carbs."
DEAR DOCTOR K: I brush and floss regularly. Do I need to use mouthwash too?
DEAR READER: Judging from the ads, you need mouthwash to prevent plaque (the yellowish film of bacteria that attaches to your teeth and leads to cavities) and gingivitis (inflammation of the gums). But mouthwash actually plays a fairly minor role in the prevention of plaque and gum disease. Brushing and flossing are much more important.
DEAR DOCTOR K: My doctor thinks I may have hypothyroidism. How will he make the diagnosis?
DEAR READER: Hypothyroidism is the medical term for an underactive thyroid. Some conditions are hard to diagnose, but fortunately hypothyroidism is not one of them.
DEAR DOCTOR K: I'm a man in my 70s with spinal stenosis. What are my surgical options?
DEAR READER: Your spine is made up of a column of bones called vertebrae. The vertebrae are separated by tough little shock-absorbing disks that keep the bone of the vertebra on top from rubbing against the bone of the vertebra beneath it. The vertebrae and disks have a circular space in the center, called the spinal canal, through which your spinal cord passes. As the bones and disks grow older, in some people they begin to break down.
Sign Up Now ForGet weekly health information and advice from the experts at Harvard Medical School.
Dr. Anthony Komaroff is a practicing physician, Professor of Medicine at Harvard Medical School, and Editor in Chief of Harvard Health Publications. Learn more »
Harvard Health Publications is the publishing division of Harvard Medical School, providing the general public with authoritative, trustworthy, and accessible health information. Learn more »
To submit your own health question to Doctor K for consideration in a future column, click here.
The contents displayed within this public group(s), such as text, graphics, and other material ("Content") are intended for educational purposes only. The Content is not intended to substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your healthcare provider with any questions you may have regarding your medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read in a public group(s).
If you think you may have a medical emergency, call your healthcare provider or 911 immediately. Any mention of products or services is not meant as a guarantee, endorsement, or recommendation of the products, services, or companies. Reliance on any information provided is solely at your own risk. Please discuss any options with your healthcare provider.
The information you share, including that which might otherwise be Protected Health Information, to this site is by design open to the public and is not a private, secure service. You should think carefully before disclosing any personal information in any public forum. What you have written may be seen, disclosed to, or collected by third parties and may be used by others in ways we are unable to control or predict, including to contact you or otherwise be used for unauthorized or unlawful purposes. As with any public forum on any site, this information may also appear in third-party search engines like Google, MSN, Yahoo, etc. Your use of this site is governed by Harvard University and its affiliates Terms of Use located at www.askdoctork.com/privacy-policy and may be amended from time to time.
View LessThe contents displayed within this public group(s), such as text, graphics, and other material ("Content") are intended for educational purposes only. The Content is not intended to substitute for professional medical advice, diagnosis, or treatment. . . .
View More
