Wounds caused by lymphedema are most commonly called lymphostatic ulcers or lymphatic ulcers. When lymph fluid leaks through the skin’s surface, that specific symptom is called lymphorrhea (sometimes spelled lymphorrhoea), often described as “weeping” skin. These are the two main terms you’ll encounter, but the broader picture of skin breakdown in lymphedema includes several related complications worth understanding.
Lymphostatic Ulcers
A lymphostatic ulcer is an open wound that develops because chronic swelling has damaged the skin and underlying tissue. The name literally means “ulcer caused by stagnant lymph fluid.” When lymph fluid pools in tissue for months or years, it creates a cascade of problems: the skin stretches thin, loses its normal elasticity, and becomes fragile. The protein-rich fluid trapped in the tissue triggers chronic inflammation, which gradually breaks down the skin’s protective barrier.
These ulcers tend to look different from other chronic wounds. They often appear foul or dirty, and the surrounding skin is typically thickened and hardened from fibrosis (a process where normal tissue is replaced by tough, scar-like tissue). Unlike venous ulcers, which are shallow and usually appear near the inner ankle, lymphostatic ulcers can develop anywhere on the swollen limb and often occur alongside more widespread skin changes.
Lymphorrhea: When Skin “Weeps”
Lymphorrhea refers to lymph fluid leaking directly through the skin. With severe swelling, the fluid can drain through small breaks in the skin or cause blistering. The fluid is typically clear or straw-colored and may weep steadily enough to soak through bandages and clothing. It has a high protein content, which makes the surrounding skin vulnerable to further irritation and breakdown.
This leaking creates a cycle that’s hard to interrupt. The constant moisture softens and weakens the skin, a process called maceration. Macerated skin tears more easily, which creates more openings for fluid to escape and, critically, for bacteria to enter. The result is that lymphorrhea both signals existing skin damage and accelerates new damage if it isn’t managed.
How Lymphedema Skin Breaks Down Over Time
Wounds don’t appear suddenly with lymphedema. They develop through a progression of skin changes that can take months or years. In earlier stages, the skin may look relatively normal aside from swelling. As the condition advances, you may notice the skin becoming tight, dry, or prone to small cracks.
The most severe skin changes happen in what the International Society of Lymphology classifies as Stage III, sometimes called lymphostatic elephantiasis. At this point, the skin undergoes dramatic changes: it thickens significantly, develops a rough or warty texture, and may form overgrowths on the surface. Fat and fibrotic tissue accumulate beneath the skin. Pitting (where pressing a finger into the swollen area leaves a temporary dent) may no longer occur because the tissue has become so firm. These trophic skin changes make the tissue extremely vulnerable to wounds that heal slowly.
Cellulitis and Recurring Infections
Any break in the skin on a lymphedematous limb carries a high risk of cellulitis, a bacterial skin infection that causes redness, warmth, and pain. Lymphedema makes infections more likely for two reasons: the swollen tissue has poor immune surveillance because lymph fluid isn’t circulating properly, and the protein-rich stagnant fluid is an ideal environment for bacterial growth.
Cellulitis and lymphedema feed each other in a damaging loop. Each episode of infection further damages the already compromised lymphatic vessels, which worsens the swelling, which increases the risk of another infection. Uncontrolled lymphedema can lead to repeated bouts of cellulitis and a progressive worsening condition that the International Society of Lymphology describes as potentially “crippling invalidism.” In rare cases, chronic lymphedema with long-standing skin changes can lead to a serious cancer called lymphangiosarcoma, known as Stewart-Treves syndrome.
How These Differ From Venous Ulcers
Lymphedema wounds are frequently confused with venous ulcers because both conditions involve swollen legs and skin breakdown. The differences matter because treatment approaches vary. Venous ulcers develop from poor blood circulation back to the heart, and they have a characteristic appearance: shallow, irregularly shaped, and clustered around the inner ankle or lower calf. The legs ache and feel heavy, and the surrounding skin often turns brown or reddish from iron deposits.
Lymphedema wounds, by contrast, are driven by fluid accumulation in the tissue rather than blood flow problems. They can appear on any part of the affected limb, including the fingers, toes, or upper arm. The surrounding skin is more likely to be thickened and fibrotic rather than discolored. Many people have both conditions simultaneously, which complicates diagnosis. Venous insufficiency is actually one of the most common causes of secondary lymphedema in the legs, so the two problems overlap frequently.
Managing Lymphedema Wounds
The core challenge with lymphedema wounds is that they won’t heal well unless the underlying swelling is addressed. Standard wound care alone isn’t enough. Compression therapy, which uses specialized bandaging or garments to reduce fluid buildup, is the foundation of treatment for both the swelling and the wounds it causes. For active lymphorrhea, absorbent dressings help manage moisture while protecting the fragile skin from further maceration.
Skin care plays a surprisingly large role in preventing wounds from developing in the first place. Keeping the skin moisturized reduces cracking, and even minor cuts or insect bites need prompt attention because the impaired immune environment of a lymphedematous limb turns small injuries into potential entry points for serious infection. If the skin has already developed the thickened, warty texture of advanced lymphedema, specialized dermatologic care may be needed alongside compression and wound management.