Venous ulcers are typically dry and non-healing wounds. They are caused by a long-term lack of blood circulation in the affected area, resulting in poor wound healing and increasing the risk of infection. The lack of blood circulation is usually due to a condition called chronic venous insufficiency, where the veins are unable to return blood from the legs back up to the heart. This causes the skin to become dry, brittle, and unable to heal properly.
The dryness of the ulcer can be exacerbated by long periods of standing or sitting, as well as by any conditions that further reduce the flow of blood to the affected area, such as diabetes, obesity, or smoking. As a result, the ulcer may become more painful and the risk of infection increases.
The main treatment for a venous ulcer is to improve the blood flow to the affected area and to keep the wound clean and dry. This can be done by applying compression bandages or compression stockings, as well as by elevating the affected limb. In some cases, antibiotics may be necessary to prevent or treat infection.
In conclusion, venous ulcers are typically dry and non-healing wounds that require special care and treatment in order to heal properly. Improving blood circulation and keeping the wound clean and dry are the key steps in managing venous ulcers.