Overview:-
Hyperemia is an increased amount of blood in the vessels of an organ or tissue in the body.
It can affect many different organs, including the:
There are two types of hyperemia:
Active hyperemia happens when there’s an increase in the blood supply to an organ. This is usually in response to a greater demand for blood — for example, if you’re exercising.
Passive hyperemia is when blood can’t properly exit an organ, so it builds up in the blood vessels. This type of hyperemia is also known as congestion.
Each type of hyperemia has a different cause.
Active hyperemia is caused by an increased flow of blood into your organs. It usually happens when organs need more blood than usual. Your blood vessels widen to increase the supply of blood flowing in.
Exercise: Your heart and muscles need more oxygen when you’re active. Blood rushes to these organs to supply extra oxygen. Your muscles need up to 20 times their normal supply of blood during a workout.
Heat: When you’re running a high fever or it’s hot outside, extra blood flows to your skin to help your body release heat.
Digestion: After you eat, your stomach and intestines need more blood to help them break down foods and absorb nutrients.
Inflammation: During an injury or infection, blood flow to the site increases.
Menopause: Women who are in menopause often have hot flashes, which causes a rush of blood to the skin — especially of the face, neck, and chest. Blushing is a similar response.
Release of a blockage. Hyperemia can happen following ischemia, which is poor blood flow to an organ. Once ischemia is treated, blood rushes to the area.
Passive hyperemia happens when blood can’t properly drain from an organ and begins to build up in the blood vessels.
Heart failure or ventricular failure. The left and right ventricles are the two main pumping chambers of the heart. The right ventricle pumps blood to the lungs, and the left ventricle pumps oxygen-rich blood to the body. When the heart can’t beat well enough to push blood through the body, blood begins to back up. This backup causes swelling, or congestion, in organs like the liver, lungs, spleen, and kidneys.
Deep vein thrombosis (DVT). DVT is caused by a clot in one of the deep veins — often in your lower legs. The clot can break free and get lodged in a vein in your lung, called a pulmonary embolism.
Hepatic vein thrombosis (HVT), also called Budd-Chiari syndrome. HVT is a blockage in the veins of the liver caused by a blood clot.
The main symptoms of hyperemia are:
Other symptoms depend on the cause of the problem.
The medicines that can be thought of use are: -
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