Pneumonia symptoms can vary based on the cause and severity of the lung infection. For some, it might feel similar to the flu or be barely noticeable. For others, pneumonia can cause severe ...

They cause you distress, and interrupt your time and your life. If you think you may have symptoms of OCD, see a doctor or mental health provider. (Photo Credit: iStock/Getty Images) The ...

Symptoms may include dry skin, itchiness, cracking, and more. With dermatitis, your skin will typically look dry, swollen, and discolored. The causes of dermatitis vary between types. However ...

Colds and flu share many of the same symptoms, including cough, sore throat, and fatigue. Even the stages of flu recovery are similar to the stages of recovery for the common cold. At times, testing ...

Symptoms of ASD typically become clearly evident during early childhood, between ages 12 and 24 months. However, symptoms may also appear earlier or later. Early symptoms may include a marked ...

It causes more severe symptoms, such as difficulty walking. Vertigo often happens because of an inner ear problem. Some of the most common causes include: Benign paroxysmal positional vertigo (BPPV).

1Division of Digestive and Liver Diseases, Department of Medicine, Irving Cancer Research Center Columbia University Medical Center, New York, New York. 2Columbia University Digestive and Liver ...

Sundaralingam, M., and Jensen, L. H., Science, 150, 1035 (1965).

Although many people recover quickly from COVID-19, the disease caused by the coronavirus known as SARS-CoV-2, others may experience symptoms for months. Researchers are still determining the cause of ...