A cyst is a sac or cavity that may be filled with pus, semi-solid material, or air. It doesn’t usually cause pain until it gets large. An abscess is a painful, red infection that’s filled with pus. A ...

Cysts, abscesses and lipomas all have one common feature: they cause a lump or bump on the skin. All three are very common and I literally remove a hundred or more lipomas and sebaceous cysts a year.

Benign ear cysts are noncancerous lumps or growths within the canal of the ear, pinna, or other parts of the ear. Sebaceous cysts are the most common cysts seen in the ear. They are bulging, sac-like ...

Ear infections are often seen as a routine childhood illness, but they can still carry serious — and sometimes life-threatening — risks. Even in the age of antibiotics, complications like hearing loss ...

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 ...