Medically reviewed by Lauren Schlanger, MD Key Takeaways A ganglion cyst is the most common cause of a lump on your hand or wrist and often feels round or oval. A carpal boss is a hard, bone-like lump ...

MRSA is a type of staph highly resistant to a common class of antibiotics. Many people carry MRSA harmlessly on their skin or inside their noses. However, if the bacteria penetrates the skin, it can ...

Papillomas are noncancerous growths that develop on your skin or mucous membranes, usually caused by infection with low risk forms of human papillomavirus (HPV). They can appear as skin warts, genital ...

Medically reviewed by Sukaina Hasnie, MD Key Takeaways A lump behind the ear can be caused by swollen lymph nodes, which are common and usually harmless.Most lumps behind the ear are benign and can be ...