Before the introduction of a vaccine in 1995, almost every American child caught a case of chickenpox. Since most people develop immunity after one round of infection, parents would even group together their healthy children and sick children to expose them to the illness in one …

Many symptoms that don't involve movement can be a warning sign for Parkinson's. They may start years or even decades before motor symptoms.

Some non-motor signs include a mask-like facial expression, drooling and cramped handwriting. Others are less obvious, such as a change in your sense …

Anyone who has experienced a kidney stone understands the frustration of waiting for it to pass. Kidney stones are solid deposits that form when crystalizing substances in the urine are too high or are not properly absorbed by the kidneys. These stones don't always have symptoms …

With eight legs and bulbous eyes, spiders may look spooky, yet they are far more passive than pop culture would lead you to believe. Spiders primarily eat insects, so humans are low on their list to attack. However, if you cross into a spider's space or …

Fibromyalgia is a chronic condition that causes widespread pain throughout the musculoskeletal system, including the muscles and joints. It isn't easy to identify, as diagnosis often requires eliminating similar conditions. On average, it takes patients five years to receive a fibromyalgia diagnosis from the time they …

Anemia is the most common blood disorder in the United States, affecting more than 3 million Americans and nearly 3 billion people worldwide in 2021. While anemia is preventable and treatable, it can cause serious health issues in more severe cases.

What Is Anemia?

Anemia occurs …

Diabetes affects the tiny blood vessels in the eye, which can leak fluid into the central retina (the part of the eye that provides sharp vision). This can lead to macular edema.

Diabetic macular edema is a serious complication of diabetes that can cause vision loss …

Although vitiligo isn’t dangerous, it's important to seek treatment to slow the progression of discoloration and help restore a more normal appearance.

Your doctor will examine your skin and ask you about any other symptoms you’ve had. He or she may also order blood …

Psoriasis can occur anywhere on the skin, including the scalp. It can look like dandruff, with plaques of thick white or silvery scales. It may also affect the hairline, forehead and ears.

Topical medications, oral medicines and phototherapy can help improve your condition. Your doctor can …

A dermatologist can create a treatment plan to relieve symptoms and prevent further damage. Treatment may include surgically removing the areas that are most prone to painful boils.

HS is a chronic condition, and people with HS often have periods of improvement or worsening. There's no …