Nurses wear scrubs because they’re the most practical clothing for a job that involves long shifts, constant movement, exposure to bodily fluids, and strict hygiene requirements. What started as a shift away from traditional white dresses and caps in the 1980s has become the universal standard in healthcare for good reason: scrubs are easy to clean, easy to move in, and easy to replace when contaminated.
How Nursing Uniforms Changed
For most of the 20th century, nurses wore white dresses, aprons, and caps. That image persisted for decades, but by the 1960s and 1970s, the profession was changing. The women’s movement pushed back against overtly feminine uniforms, and a growing number of male nurses made the traditional dress impractical for everyone. Nursing caps, once a symbol of the profession, kept falling off at the worst times and were recognized as a hygiene liability rather than a mark of professionalism. Most hospitals dropped the cap requirement entirely by the mid-1980s.
Scrubs filled the gap. Originally worn only by surgical teams (the name comes from “scrubbing in” for surgery), they migrated to the rest of the hospital throughout the 1980s and 1990s. The appeal was obvious: they were comfortable, wrinkle-resistant, available in a range of colors and patterns, and could be washed aggressively without falling apart. Within a decade, they became the default uniform across nearly every clinical setting.
Infection Control and Hygiene
The single biggest reason scrubs remain standard is infection prevention. Nurses come into contact with blood, wound drainage, saliva, and other potentially infectious materials throughout a shift. Scrubs are designed to be laundered at temperatures and with chemicals that destroy dangerous pathogens. The CDC recommends washing healthcare laundry at a minimum of 160°F for at least 25 minutes when using hot water, often with chlorine bleach for an added margin of safety. Regular street clothes simply aren’t built to survive that kind of treatment repeatedly.
The fabric itself matters, too. Newer scrubs treated with antimicrobial compounds can actively slow the growth of bacteria on the fabric’s surface. A recent study found that scrubs treated with zinc-based antimicrobials combined with a fluid-repelling finish showed significantly less pathogen growth compared to untreated fabric. That fluid-repelling quality is key: when blood or other fluids bead up on the surface instead of soaking in, there’s less chance of carrying an infection from one patient room to the next.
Even without antimicrobial treatment, the simplicity of scrubs helps. They’re easy to change between patients or after a spill, and many hospitals provide freshly laundered sets on site so nurses never have to wear potentially contaminated clothing home. OSHA classifies laundry soiled with blood or infectious materials as “contaminated laundry” with specific handling requirements, and the straightforward design of scrubs makes compliance much easier than it would be with regular clothing.
Built for 12-Hour Shifts
A typical nursing shift runs 12 hours, much of it spent on your feet, bending, lifting, and moving quickly. Modern scrubs are engineered around that reality. Four-way stretch fabrics allow a full range of motion without restricting the hips or shoulders. Moisture-wicking materials pull sweat away from the skin, which matters when you’re walking 5 or 6 miles in a single shift. Elastic waistbands with drawcords let nurses adjust the fit throughout the day as their body shifts from standing to crouching to sitting.
Pockets are a surprisingly important design feature. Nurses carry a lot: pens, hemostats, scissors, notepads, phones, badge holders, and sometimes a stethoscope. Well-placed pockets on the chest, hips, and thighs keep these tools within reach so a nurse doesn’t have to leave a patient’s bedside to grab something from a bag across the room. Cargo-style side pockets have become especially popular for holding larger items without adding bulk at the waist.
Color Coding by Role
Many hospitals assign specific scrub colors to different roles so patients and visitors can quickly identify who’s caring for them. The exact system varies by facility, but the logic is consistent. At Denver Health, for example, registered nurses wear royal blue, licensed practical nurses wear teal, and certified nursing assistants wear light blue. Pharmacists and pharmacy technicians wear grape, radiology staff wear rich purple, and respiratory therapists wear black. Physical and occupational therapists wear gray polo shirts. Even volunteers and food service workers have assigned colors.
This isn’t just for aesthetics. In an emergency, a patient or family member who can say “the nurse in blue” gives staff a faster way to identify a specific caregiver. It also helps patients understand who is doing what: the person drawing blood may not be the same role as the person administering medication, and color distinctions make that visible at a glance. Not all hospitals enforce color coding, but the trend has grown steadily as patient experience and communication have become higher priorities.
Cost and Replaceability
Scrubs are also inexpensive relative to other professional clothing. A basic set costs a fraction of what a nurse might spend on business-casual work clothes, and because they’re made from durable polyester-cotton blends, they hold up to repeated industrial laundering far better than most fabrics. When a set does get stained beyond saving or torn during a difficult shift, replacing it isn’t a financial burden.
Many hospitals provide scrubs directly, laundering them on site and making fresh sets available each shift. This removes the cost entirely from the nurse and gives the facility control over hygiene standards. For nurses who buy their own, the low price point means they can keep enough sets in rotation to always have a clean pair ready, even during stretches of consecutive shifts.
Scrubs vs. Personal Protective Equipment
One common point of confusion: scrubs are not technically classified as personal protective equipment under federal regulations. OSHA defines PPE as specialized clothing worn specifically to protect against a hazard. General work clothes, including uniforms, pants, and shirts, don’t qualify. That means scrubs alone don’t meet the standard when a nurse is exposed to bloodborne pathogens. In those situations, additional PPE like gowns, gloves, face shields, or fluid-resistant coverings goes on over the scrubs.
Scrubs serve as the baseline layer, chosen for comfort and cleanability, while true PPE is added based on the specific risk of a given task. This layered approach is why you’ll sometimes see a nurse in scrubs with no additional gear during a routine check and the same nurse fully gowned and gloved a few minutes later during a wound care procedure.