Can Lipodermatosclerosis Spread or Keep Getting Worse?

It cannot spread by contact like an infection, but the underlying vein problem can affect both legs, and the skin changes can slowly progress over time ^[1][2].

It is also common for the skin changes, dark pigmentation, and hardening (fibrosis) to persist or slowly worsen even if your day-to-day swelling (edema) seems to improve ^[3][4].

Why Fibrosis Progresses While Swelling Fluctuates

It is easy to confuse swelling with the actual disease process of lipodermatosclerosis.

• Fluctuating Edema (Swelling): Edema is simply fluid pooling in your tissues. This fluid can come and go relatively quickly depending on your salt intake, whether you elevate your legs, or how much you stand during the day ^[3].
• Progressive Fibrosis and Pigmentation: Lipodermatosclerosis involves structural damage to your skin and the fat layer beneath it ^[4]. The underlying cause is usually chronic venous insufficiency—an impaired return of blood through the leg veins ^[5]. When vein valves that normally prevent backward flow fail, blood pools in the lower legs (venous reflux). The increased pressure causes inflammation, iron deposits (hemosiderin) from broken red blood cells, and the death of fat cells ^[3][4]. Your body responds by creating scar tissue (collagen remodeling), which leads to the tightening, hardening, and darkening of the skin ^[4][1].

Because these structural changes and iron deposits are deep within the tissue, they do not simply vanish when the fluid volume (swelling) decreases ^[3]. In fact, one small study tracking 30 patients with acute lipodermatosclerosis found that after their initial symptoms improved with compression therapy, 56% of those legs eventually progressed to chronic lipodermatosclerosis when the compression was stopped ^[6]. While this does not mean progression is inevitable for everyone, it highlights why symptoms returning or persisting can happen if the underlying pressure is not managed.

For many patients, compression therapy is commonly recommended to manage this pressure, but it should only be used when prescribed by a clinician after they have checked your arterial circulation (blood flow to your legs) to ensure it is safe ^[7]. Note that even with optimal treatment, some permanent discoloration and skin hardening may remain; this does not necessarily mean your treatment is failing.

Can it Affect My Other Leg?

While lipodermatosclerosis does not spread by contact, many patients develop it in both legs (bilateral disease) ^[2]. If you have failing valves, a history of blood clots, or chronic venous obstruction that affects both legs, the pressure can damage the skin on both sides over time ^[8]. Because these changes can happen at different rates, you might notice the hardening or discoloration start on one leg and appear on the other leg months or years later ^[8].

Red Flags: When to Seek Immediate Medical Care

Because lipodermatosclerosis causes red, warm, and painful skin, patients often worry it is a rapidly spreading infection. Acute lipodermatosclerosis can closely mimic an infection, but they are fundamentally different ^[1][9]. However, there is no reliable way to tell them apart at home, and other dangerous conditions can mimic a normal flare-up.

Call emergency services (911) immediately

Do not wait for a clinic appointment and do not drive yourself if you experience any of the following:

• Signs of a Pulmonary Embolism (PE): If a blood clot breaks off and travels to your lungs, it is life-threatening. Seek immediate help for sudden shortness of breath, chest pain (especially when breathing), coughing up blood, fainting, or a severe, unexplained rapid heartbeat ^[10].
• Signs of a Severe or Necrotizing Infection: Seek emergency care for rapidly escalating pain (pain that feels out of proportion to what the skin looks like), confusion, faintness, severe weakness, skin blistering, blackening/necrosis, or extremely rapid spreading of redness and swelling ^[11][12].

Seek same-day medical assessment

You should seek an urgent clinical assessment if you notice a new, unexplained, or rapidly worsening change (such as new swelling, redness, severe pain, or warmth). Your doctor can perform a physical exam and, if they suspect a blood clot, order a venous ultrasound ^[13][14][9].

• Deep Vein Thrombosis (DVT): A blood clot in the deep veins. Signs include unilateral swelling, pain, noticeable blue or mottled skin, or prominent surface veins ^[13][15]. However, DVT can also be subtle and not have all these signs.
• Cellulitis: A bacterial infection of the deep skin layers. Signs include rapidly spreading redness, intense warmth, fever, or chills ^[9]. Note that cellulitis does not always cause a fever ^[16].