Boils and cysts are two types of growths on the body. Also known as furuncles, boils are pockets of pus (a creamy, white substance) on the skin caused by bacteria infecting hair follicles.

An ingrown hair bump, or cyst, extends from your body’s surface and deep underneath it. It often looks like a red pimple with one hair on its surface, but other types can look different and ...

Liver cysts are fluid-filled sacs that form in the liver. Also known as hepatic cysts, they can develop before birth or later in life due to infection or genetic disorders like polycystic liver ...

Mature teratomas are the most common type of ovarian germ cell tumour. They are non cancerous (benign). Mature teratoma is also often called an ovarian dermoid cyst. They are most common in women ...

There are several types of thyroid nodules: Colloid nodules are benign buildups of thyroid cells. Follicular adenomas are also benign. Thyroid cysts are fluid-filled sacs inside of your thyroid gland ...

This helps your doctor to better diagnose the size, shape, and number of nodules, whether they might be cysts or something more serious. A sonogram can also help your doctor perform a biopsy.

Lumps can form under the skin for many reasons, including cysts or swollen lymph nodes. Often they don’t require treatment, but if they change in size or appearance, contact a doctor for an exam.