Adolescents may be less likely to show hyperactivity, although symptoms of inattentiveness and impulsivity often continue. Attention deficit hyperactivity disorder (ADHD) is a neurodevelopmental ...

If you already have a liver condition such as cirrhosis, tell your doctor if you have any new or worsening symptoms. Symptoms of liver cancer are often quite vague and vary depending on where the ...

Early signs of HIV can include fatigue, rash, fever, chills, headache, sore throat, swollen lymph nodes, muscle aches, oral thrush, and night sweats. Some symptoms appear in the early stage of HIV, ...

What Causes Pneumonia and Who Is at Risk? Pneumonia symptoms can vary widely from a mild flu to a life-threatening emergency. Cough, fever, and fatigue are common, but you should seek help for more ...

It's also possible they might have all these behaviors or a mix of these. ADHD symptoms usually show up when children are young — around school age. But you might notice them much earlier.

Keep in mind that many cancers don’t have symptoms in their early stages. And if you do have symptoms, they could also show up with other conditions, so you’ll need tests to find out the cause.

The onset of type 2 diabetes can be gradual, and symptoms can be mild during the early stages. As a result, many people may not realize that they have this condition. Possible early signs may ...