Venous insufficiency may also manifest itself as leg swelling, skin discoloration, and eventual scarring of the skin and fat to the underlying muscle (stasis dermatitis or lipodermatosclerosis). Lipodermatosclerosis is a significant risk factor in the development of recurrent skin infections and eventual venous ulcerations. Venous ulcers are typically the result of incidental skin trauma which has difficulty healing because of the unhealthy nature of the skin and extra fluid in the tissues which impairs the delivery of oxygen to the wounds. Small tears and simple wounds may fester for months and gradually grow larger. Early evaluation of the venous system is important in establishing the underlying cause of these wounds and in expediting the most effective treatment plan.