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why do the glands behind my ears swell

One of the most important structures in your is the mastoid bone. Although itвs called a bone, the mastoid doesnвt have the typical structure associated with other bones in the human body. Itвs made of air sacs and resembles a sponge, rather than being solid and rigid like most bones. The mastoid must receive air from other parts of the ear, including the, to function properly. Your eustachian tube connects your middle ear to the back of your throat. If an infection develops in your middle ear and blocks your eustachian tube, it may subsequently lead to an infection in the mastoid bone. This serious infection is known as mastoid bone infection of the skull, or mastoiditis.
Most or lumps under the are not cause for concern.

The glands ( ) on either side of the neck, under the jaw, or behind the ears commonly swell when you have a cold or. More serious infections may cause the glands to enlarge and become very firm and tender. Glands can also and become tender after an injury, such as a cut or bite, or when a tumor or infection occurs in the, head, or neck. and other lumps under the skin can be caused by many different things, including illness, infection, or another cause. Swollen glands commonly develop when the body fights infections from, or small cuts. More serious infections may cause the glands to enlarge and become firm, hard, or tender. Examples of such infections include:, such as:, caused by the bacterium.

A ( ), similar to a large pimple. A boil may develop when a follicle or the skin becomes infected. A may form one or more lumps in the that look like boils. , such as: A of the skin ( ), which causes small pearly or flesh-colored bumps. , or. , which develops in the late stage of infection. This virus attacks the immune system, making it difficult for the body to fight off infection and some diseases. (Epstein-Barr virus) or. These viruses cause fever, and. Other infections, such as:, an infection that is spread by certain types of ticks. , a sexually transmitted infection. Types of noncancerous (benign) growths, which are usually harmless, include: A, a smooth, rubbery, dome-shaped lump that is easily movable under the skin.

A, a sac of fluid and debris that sometimes hurts. from are large pimples that occur deep under the skin. Branchial cleft cysts are found in the neck and do not usually cause problems unless they become infected. These cysts are most common in teenagers. An (also called a ) often appears on the scalp, ears, face, or back. A is a soft, rubbery lump (a type of cyst) on the front or back of the wrist. , which may also cause swelling in the neck. A problem, such as, a salivary stone, an infection, or a tumor. An of fatty tissue under the skin ( ) or overgrown scar tissue ( ).

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