However, when these break down, fluid can be retained outside the cells, accumulating in the tissues. This usually occurs in the tissues of the abdomen and extremities, although it can pass through the entire body. The reasons for breaking this balance, grosso modo are: kidney problems, which prevent the water management of the body liver problems, which cause a decompensation in the oncotic pressure (of the proteins) heart problems, which reduce the blood pressure in the tissues obstruction of the lymphatic system. Body water corresponds to 65% intracellular and 35% is extracellular , approximately. This balance occurs naturally thanks to cellular mechanisms. The human body is composed between 80 and 60% of water. Part of this water is inside the cells. Another part is outside, as part of the interstitial fluid (from Latin, between cells). The amount of interstitial fluid is controlled by homeostasis. The more colloquial “fluid retention” refers to that very thing: a slight accumulation of interstitial fluid that manifests with swelling and temporary weight gain. In cases of severe dropsy, when they become clinical pictures, we are before a manifestation of a disease that could have its origin in the heart, in the liver or in the kidneys. It can also appear because of an immune problem. The fluid retention , also known as dropsy or edema, is seen in a bloated feeling, especially in the limbs (arms and legs), but may also occur in the abdomen. A normal retention is not dangerous, although it could indicate a more serious pathology.
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