Mayo Clinic diet
Learning Center
Yeast infection in men: How can I tell if I have one?
Yeast infections can occur in men, causing inflammation of the penis (balanitis). Learn what signs and symptoms could mean you have a yeast infection.
X-linked agammaglobulinemia
This genetic disease weakens the immune system, mainly in males, and leads to having infections often.
Wolff-Parkinson-White (WPW) syndrome
This heart condition present at birth causes a fast heartbeat. Rarely, it can cause sudden cardiac death. Know the symptoms and how it's treated.
Withdrawal method (coitus interruptus)
The withdrawal method — pulling the penis out of the vagina before ejaculation — isn't the most effective birth control. Learn about the pros and cons.
Whooping cough
Learn more about the symptoms, causes, treatment of this highly contagious, vaccine-preventable lung infection.
White patch on skin: A cause for concern?
A small white patch on skin may have several causes, including eczema, psoriasis and vitiligo.
Whiplash
This common neck injury often is from a car crash. But other trauma can cause it too. Know the symptoms and how to treat it.
Wheezing in children: Could it be asthma?
Wheezing in children may be a sign of asthma — but not always.
Wheezing
Wheezing: Symptom — Overview covers definition, possible causes of this symptom.
Weight-loss tip: Don't skip snacks
Do you feel guilty about snacking? Don't. Snacks aren't necessarily bad. In fact, well-planned weight-loss diets allow for snacks to help manage hunger and reduce bingeing. Eating a healthy snack of fresh fruit or raw veggies may stop you from taking second or third helpings at your next meal, dramatically cutting the total number of calories you consume.
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