Cone under the knee: the causes of the appearance

Knee joints are a very important elementin the musculoskeletal system of a person, therefore it is necessary to treat them carefully and carefully. For example, if you notice that you have a cone under your knee, be sure to find out the causes of this phenomenon and take appropriate measures. The most common factors causing pain and leading to compaction are discussed below.

Becker's cyst

Diagnosis of this disease is possible by acutepain, localized in the popliteal cavity, and small puffiness, in the place of which a lump under the knee may appear. The fact that the inner surface of human joints is covered with a shell that produces synovial fluid. The latter plays the role of lubricant. With inflammation of the shell, the production of the fluid increases. It is her excess leads to the compression of the envelope and its swelling, and this explains the unpleasant sensations and the appearance of education, soft to the touch and responding pain at every touch. At the initial stage, the cyst resembles a pea, but grows quite quickly and becomes well marked. To get rid of it it is possible by means of conservative treatment (reception of anti-inflammatory preparations) or pumping out of a liquid by a thick needle.

A purulent-inflammatory process

The bump under the knee may indicateneglected inflammatory process. Most likely, the patient in the past had infected wounds in the ankle: the infection penetrated the popliteal lymph nodes, which increased in size. In medicine, this condition is denoted by the term "purulent lymphadenitis". It can lead to abscess popliteal fossa. To avoid such complications, it is necessary to contact the surgeon as soon as possible, he will open the abscess and clean it.

Vascular problems

Quite often the lump under the knee isa sign that the tibial nerve, which passes through the bottom of the popliteal fossa, is inflamed. Identify the inflammation can be a small edema and acute pain that occurs during walking and is strengthened when bending the leg. In neglected cases, it spreads all the way to the foot. Tendon reflexes change at the same time, muscle tone deteriorates. Only the surgical intervention can help the patient.

Aneurysm

A bump under the knee at the back, which pulses and"Pulls" the leg, indicates an aneurysm of the corresponding artery. This is explained by the fact that the walls of the artery gradually separate, and it protrudes outward. If you do not take measures, the patient may begin extensive bleeding.

Thrombosis

Is the leg under the knee hurting behind? It is likely that the cause lies in thrombosis of the popliteal vein. It should be noted that this diagnosis is extremely rare and is recognized by doctors with great difficulty. In most cases, it can be fixed only after serious complications, such as thromboembolism. The presence of thrombi can be detected with the help of ultrasound examination of blood vessels. Depending on their size, doctors prescribe conservative or surgical treatment.