What are the symptoms of lymphadenitis

You may have had this experience before: when your feet get boils or become inflamed after an injury, you will also feel pain in the groin. If you touch it carefully, you will feel one or several bean-sized "lumps" under the skin, which are hard and painful. These are lymph nodes. When bacteria enter your blood vessels from an injury, the lymph nodes, the "enemy sentinels," first fight back against the bacteria to prevent the "enemy" from going deeper. As each lymphocyte "eats" a large number of bacteria, its "belly" becomes bigger and bigger, and the entire lymph node becomes swollen and painful. Therefore, lymph nodes are important immune organs in the body. Lymph nodes are also an alarm device in the human body. Swollen lymph nodes may be an external manifestation of a certain disease.

Question 1:

Lymph node inflammation: Superficial lymph nodes are distributed in groups, and each group of lymph nodes receives lymph fluid from a certain area. For example, the lymph nodes in the ear and mastoid area receive lymph from the scalp; the submandibular lymph nodes receive lymph from the floor of the mouth, buccal mucosa, gums, etc.; the submental lymph nodes collect lymph from the tissues in the submental triangle, lips and tongue. The deep cervical lymph nodes collect lymph from the nasopharynx, larynx, trachea, thyroid gland, etc.; the right supraclavicular lymph nodes receive lymph from the trachea, pleura, lungs, etc.; the left supraclavicular lymph nodes receive lymph from the esophagus, gastrointestinal tract and other organs. The lymph fluid from the upper trunk, breast, chest wall, etc. flows back to the axillary lymph nodes; the lymph fluid from the lower limbs and perineum flows back to the inguinal lymph nodes. When inflammation or cancer occurs in a part of the body, microorganisms or cancer cells can spread along the lymphatic vessels to reach the lymph nodes of that organ or part, causing swollen and tender lymph nodes, which is of great significance for the diagnosis of the disease.

symptom:

Bacterial infection: Acute inflammation in the mouth, face, etc. often causes swelling of the mandibular lymph nodes. The swollen lymph nodes are soft in texture and have good mobility. Generally, they will gradually return to normal as the inflammation disappears.

Viral infections: measles, infectious mononucleosis, etc. can cause swollen lymph nodes. Sometimes lymphadenopathy has important diagnostic value, such as rubella, which often causes occipital lymphadenopathy.

Lymph node tuberculosis: It is most common in the form of enlarged lymph nodes in the neck, some of which may rupture and some may not. It is sometimes difficult to distinguish it from lymphoma clinically. The diagnostic method is to perform lymph node puncture, smear and biopsy multiple times and in multiple locations to find the primary lesion of tuberculosis.

Lymph node metastasis: This type of lymph node is very hard, non-tender, and immobile. Especially in patients with gastric cancer and esophageal cancer, small enlarged lymph nodes above the clavicle can be felt. Breast cancer patients should frequently palpate the axillary lymph nodes to determine whether the tumor has metastasized.