My Grandmother Keeps Getting This Rusty Brown, Scaly Discoloration Around Her Lower Legs and Ankles. Is It Serious?

By Morgan Reed | Contributing Writer

Understanding stasis dermatitis, chronic venous insufficiency, warning signs, and the safest ways to protect an older adult's skin.

When a rusty brown, dry-looking discoloration begins appearing around an older person's lower legs and ankles, it can be difficult to know whether the problem is simply a change associated with aging or a sign of something more serious. The skin may gradually become darker, rougher, and increasingly scaly, sometimes developing patches that seem to wrap around the ankles and extend toward the shins. What initially looks like an ordinary rash may eventually become itchy, swollen, uncomfortable, or even cracked.

For families caring for older relatives, changes like these can be particularly concerning. The discoloration may develop slowly, making it easy to overlook at first. A grandmother might mention that her ankles feel tight in the evening, that her lower legs itch more than usual, or that her socks leave deeper marks than they used to. By the time family members notice the brown staining and scaling, the underlying problem may have been developing for months or even years.

One possible explanation is stasis dermatitis, also known as venous stasis dermatitis. This is an inflammatory skin condition associated with poor circulation in the veins of the lower extremities. It commonly develops when blood does not return efficiently from the legs toward the heart, allowing pressure to build up in the smaller blood vessels. Over time, fluid and blood components can leak into surrounding tissues, producing swelling, inflammation, itching, and characteristic brown discoloration.

Stasis dermatitis is relatively common among older adults, particularly those who have chronic leg swelling, varicose veins, a history of blood clots, or reduced mobility. Although it is often manageable with appropriate treatment, it should not be dismissed as an ordinary cosmetic change. Without proper care, inflammation can become persistent, the skin can grow thick and fragile, and open wounds known as venous ulcers may eventually develop.

There is another important reason to take this symptom seriously: not every brown or scaly rash around the ankles is caused by venous disease. Cellulitis, deep vein thrombosis, contact dermatitis, eczema, fungal infections, and problems involving arterial circulation can produce overlapping symptoms. Some of these conditions require prompt medical attention.

The most useful approach is therefore to understand the pattern of symptoms, recognize warning signs, protect the affected skin, and arrange an appropriate medical assessment rather than attempting to diagnose the condition at home.

This guide explains what stasis dermatitis typically looks like, why it develops, which people are most susceptible, how clinicians distinguish it from other conditions, and what families can safely do while waiting for an appointment. It also examines compression therapy, medical treatments, possible complications, and the circumstances in which a seemingly minor skin problem should become an urgent medical concern.

The central message is straightforward: gradual brown discoloration and scaling around the ankles are not necessarily an emergency, but persistent changes accompanied by swelling deserve medical evaluation. Recognizing the underlying circulation problem early can make treatment more effective and help prevent complications.

1. What Stasis Dermatitis Usually Looks Like

Stasis dermatitis is a form of eczema that develops when circulation in the lower legs becomes impaired, most commonly because of chronic venous insufficiency. It is particularly common around the ankles and lower shins, where gravity makes it more difficult for blood to return efficiently toward the heart.

Unlike an ordinary temporary rash, stasis dermatitis often develops gradually. The earliest changes may be subtle: a little swelling around the ankles, slightly darker skin, or an area that becomes unusually dry and itchy. Over time, the discoloration may become more noticeable, and the skin can develop a rough, scaly texture.

According to the American Academy of Dermatology (AAD), early symptoms commonly include swollen ankles, itchy and discolored skin, irritation, and aching or heaviness in the legs. These symptoms can become more noticeable after prolonged standing or walking.

American Academy of Dermatology+1

The Characteristic Rusty-Brown Discoloration

One of the most recognizable features of stasis dermatitis is brown or reddish-brown pigmentation around the ankles.

The discoloration may resemble:

• Rust-colored staining.

• Dark reddish-brown patches.

• Tea-colored or copper-colored skin.

• Uneven pigmentation surrounding the inner ankles.

• Broad areas of discoloration extending toward the lower shins.

In some individuals, the affected area appears as though the skin has been stained by something that cannot be washed away. This happens because the color is produced by changes beneath the skin's surface rather than by dirt or an external substance.

The pigmentation may be relatively faint in the early stages but can become more pronounced over time. It can also remain visible even after inflammation and swelling have improved.

Dryness, Scaling, and Itching

Another characteristic feature is a change in skin texture.

The affected skin may become:

• Dry and flaky.

• Rough or scaly.

• Itchy, sometimes persistently.

• Slightly swollen or stretched.

• Thickened after prolonged inflammation.

• Sensitive to soaps, fragrances, and other topical products.

Some people develop small cracks or superficial erosions. Others experience periods when the skin becomes red, inflamed, or slightly weepy.

Itching can be particularly troublesome because scratching damages the skin barrier. Once the surface becomes cracked, bacteria can enter more easily, increasing the risk of secondary infection.

Older adults may also have naturally thinner and more fragile skin, making it especially important to avoid aggressive scrubbing, harsh cleansers, and unnecessary topical treatments.

Swelling Around the Ankles

Swelling is one of the most important clues that the problem may involve venous circulation rather than an isolated skin condition.

People with stasis dermatitis often notice that their ankles look relatively normal in the morning but become increasingly swollen as the day progresses.

The swelling may:

• Affect both ankles.

• Be more noticeable around the inner ankle.

• Leave temporary indentations when socks are removed.

• Produce a sensation of heaviness or tightness.

• Improve after lying down or elevating the legs.

This pattern occurs because gravity increases pressure in the veins of the lower legs when someone remains upright.

However, swelling is not specific to stasis dermatitis. Heart disease, kidney disease, certain medications, lymphatic problems, and blood clots can also cause swollen legs. A clinician must consider these possibilities before deciding on treatment.

Can It Affect Both Legs?

Yes. Stasis dermatitis frequently affects both lower legs, although one side may be more severely affected.

Bilateral involvement, particularly when accompanied by longstanding ankle swelling and varicose veins, can make chronic venous disease more likely.

However, bilateral symptoms do not prove that venous insufficiency is responsible. Other conditions can also cause changes in both legs.

Conversely, stasis dermatitis can sometimes be much worse on one side, particularly when previous injury, surgery, or venous obstruction has affected that leg.

The overall pattern, medical history, and physical examination are more informative than any single symptom.

How the Condition Can Change Over Time

In its early stages, stasis dermatitis may look like a mild patch of dry, discolored skin.

If the underlying circulation problem continues, the condition can become more persistent.

The skin may become increasingly inflamed, thickened, and fragile. In some people, the tissue beneath the skin also becomes hardened, creating a firm or woody feeling around the lower leg.