A man has died in NSW after being bitten by a bat, in the state’s first confirmed case of the rare - and deadly - disease.

The virus, spread by ticks, can cause a disease that leads to swelling of the brain and permanent health problems in half of severe cases.

Poliosis is a rare condition where hair follicles lack pigment, often seen in piebaldism, vitiligo, and alopecia areata. It's ...

Harlequin ichthyosis affects just a handful of newborns each year in the US, but the condition is unmistakable, marked by a ...

When nerve cells don’t end up in the right place during brain development, it can cause periventricular heterotopia —a ...

Rare diseases affect millions. Here, 15 surprising conditions you should know about—including disorders that turn your skin blue or give you a foreign accent.

The genetic disease harlequin ichthyosis affects the transport of fats within the skin, resulting in hard, scalelike plaques ...