Pressure ulcers associated with immobility

Pressure ulcers associated with immobility

Clinical
Did You Know?

Immobility-Associated Pressure Ulcers

There are things that one learns late. That a bedridden person can develop a serious wound without having suffered a blow. That this wound can start as a simple redness that goes unnoticed. And that, over time, it can turn into a deep, painful, and difficult-to-treat injury.

If you care for someone with a disability—an elderly family member, a recovering patient, or someone with a chronic condition—this blog is for you. Not to scare you, but to give you the tools that truly make a difference.

Immobility-associated pressure ulcers: how to prevent them and care for the skin correctly?

According to the United States' Agency for Healthcare Research and Quality, more than 2.5 million cases of pressure ulcers are recorded each year in US hospitals alone, and it is estimated that over 60% of them are preventable with timely interventions.

What exactly are pressure ulcers and why do they appear?

Immobility-associated pressure ulcers appear when a part of the body remains resting on a surface for too long without changing position. This constant pressure reduces blood circulation and causes the skin and tissues to gradually deteriorate.

Although many people believe they only occur due to lying down or sitting for a long time, other factors actually play a role as well, such as:

  • Friction against sheets or cushions.

  • Moisture from sweat or incontinence.

  • Lack of mobility.

  • Loss of sensation.

  • Poor nutrition.

Generally, the first signs are easy to miss. The skin may look red, feel warmer, or exhibit tenderness to the touch. If not detected in time, the injury can progress and become a deep wound that is difficult to treat.

We invite you to read: Recommendations to avoid the appearance of pressure ulcers

What are the most affected areas of the body?

Pressure ulcers usually appear on parts of the body where bone is closest to the skin and there is less tissue to cushion the pressure.

In bedridden individuals, the most affected areas are usually:

  • Lower back and tailbone (coccyx).

  • Heels.

  • Hips.

  • Shoulder blades.

  • Back of the head.

In wheelchair users, the highest-risk points are typically:

  • Buttocks.

  • Tailbone.

  • Back of the thighs.

  • “Sit bones” or ischial tuberosities.

Additionally, there are areas that often go unnoticed, such as the ears, nose, or forehead. This occurs especially in people who use medical devices like oxygen masks or positioning supports for long periods.

How does an ulcer evolve if there is no timely intervention?

Stage

What you see

What is happening inside

I

Intact skin with persistent redness

Superficial inflammation, still reversible

II

Loss of the superficial layer of skin, possible blister

Damage to the dermis, risk of infection

III

Open wound with yellowish or necrotic tissue

Full-thickness skin loss

IV

Exposure of muscle, tendon, or bone

Severe injury with a high risk of systemic infection

The difference between stage I and stage IV can be a matter of days in a person with combined risk factors. Redness that does not subside after relieving pressure for 30 minutes already warrants immediate attention.

Which people are at higher risk of developing them?

It is not just a matter of being unable to move. There are conditions that make the skin much more vulnerable, and knowing them allows you to be more alert.

Factor

Why does it increase the risk?

Age over 70 years

The skin thins and loses its capacity to recover

Diabetes

Compromised peripheral circulation and reduced sensitivity

Malnutrition or low weight

Without proteins and micronutrients, the skin cannot regenerate

Urinary or fecal incontinence

Constant moisture breaks down the skin's protective barrier

Use of sedatives or strong pain relievers

They reduce the perception of pain that normally prompts movement

Anemia

Reduced oxygen-carrying capacity to the tissues

When two or more of these factors coincide, immobility-associated pressure ulcers can appear with surprising speed, even in people receiving care. That is why prevention must be proactive, not reactive.

What can you specifically do to prevent them?

This is the most important part. And the good news is that the most effective preventive actions do not require advanced medical technology, but rather consistency and attention.

Daily skin inspection: Spend a few minutes each day checking high-risk areas. Look for changes in color, temperature, or texture. If the skin looks darker, shinier, or wetter than normal in a weight-bearing area, act without waiting.

Frequent posture changes: For bedridden individuals, changing positions every two hours is the minimum standard. For those who use a wheelchair, a small pressure relief every 30 minutes by lifting the body slightly or tilting the chair can make all the difference.

Specialized support surfaces: This is where the right equipment comes into play. Pressure redistribution mattresses and anti-decubitus cushions with gel or air cell technology are designed so that no area of the body accumulates pressure for too long. At Loh Medical, we offer positioning solutions designed for home and institutional use, because we know that these devices are not optional accessories—they are part of the care.

A gel cushion for a wheelchair, for example, not only reduces the risk of immobility-associated pressure ulcers but also improves posture, reduces fatigue, and makes hours in the chair more bearable for the user.

Hydration and nutrition: The skin needs raw materials to stay healthy. A diet with enough protein, vitamin C, and zinc promotes cellular regeneration. Proper hydration maintains skin elasticity. These factors, even if they seem basic, have a direct impact on tissue resistance.

Moisture management: If the person has incontinence, immediate hygiene after each episode and the use of barrier creams protect the skin from prolonged contact with moisture. Macerated skin is significantly more vulnerable.

You may also be interested in: 5 benefits of medical technology for society's well-being

Taking good care of someone who cannot move is one of the most demanding and valuable tasks that exist

No one prepares families to assume the care of a person with reduced mobility. It comes suddenly, with all its emotional and practical burden, and often without a clear guide on what to do first.

Immobility-associated pressure ulcers are one of the quietest risks of that reality. They do not make noise. They do not give clear warnings. But when they appear, they can completely change the quality of life for the person suffering from them and for those who care for them.

What is in your hands is to reduce that risk. With daily checks, constant posture changes, proper nutrition, and the right equipment. At Loh Medical, we work precisely so that caregivers have access to real solutions: anti-decubitus cushions, pressure redistribution mattresses, positioning accessories, and guidance to choose what best suits each situation.

Because every prevented ulcer is a story of pain that did not happen. And that, in caregiving, is everything.