A cast provides necessary immobilization for a bone to heal, but its porous materials make managing daily hygiene a challenge. Keeping the cast completely dry is important, whether it is made of plaster or fiberglass with traditional cotton padding. Water penetration can compromise the cast’s structural integrity and create an environment for skin complications. The objective is to maintain hygiene while taking steps to prevent the cast from getting wet during showering.
Essential Supplies for Waterproofing
Protecting a cast from water involves creating a reliable, watertight seal around the limb above the cast’s edge. Commercial waterproof cast covers are the most dependable solution, offering a thick, durable sleeve with a snug opening. These specialized protectors are designed for repetitive use and provide protection against water leakage compared to household items. Investing in a quality cover minimizes the risk of water penetration and potential complications.
An alternative is a do-it-yourself method using a large plastic bag, such as a trash bag, secured with duct tape or a strong rubber band. This method requires using at least a double layer of plastic for security, with the top edge sealed directly onto the skin above the cast. However, plastic bags are less effective and more prone to failing than commercial covers. If water seeps in, the damp padding creates a warm, moist environment perfect for bacterial and fungal growth, which can cause skin maceration and infection.
Step-by-Step Showering Techniques
Before stepping into the shower, ensure your waterproof cover is securely in place, creating a tight seal above the cast. Place a small, absorbent cloth or towel at the top edge of the cast, underneath the waterproof seal, to catch any stray drips or condensation. This acts as a final barrier to prevent water from wicking down the limb into the cast padding.
The physical act of showering requires careful positioning to keep the protected limb away from the direct spray. If you have an arm cast, keep it elevated and held outside the shower curtain or door, ensuring the opening is pointed downward. For a leg or foot cast, use a shower chair or bench to sit down, extending the protected limb outside the shower or resting it on a stable surface.
Using a handheld shower nozzle is recommended, as it gives you precise control over the water flow, directing it only to the parts of your body that need washing. This allows for a more thorough cleaning while minimizing the chance of overspray reaching the covered cast. If a handheld nozzle is unavailable, position your body so the main showerhead spray falls away from the casted limb at all times.
Maintaining Safety and Troubleshooting
The primary safety concern in the bathroom is preventing a slip or fall, which could cause further injury to the healing bone. Equip the shower or tub area with non-slip mats and install secure grab bars for stable support when moving in and out. If you have a leg cast, consider having another adult present to assist you, especially with maneuvering into the shower chair.
Immediately after showering, inspect the cast for any sign of dampness or moisture penetration. If the cast material feels slightly damp on the outside, use a hairdryer set to the cool or low-heat setting to gently air-dry the area. Never use the hot setting, as this can cause the skin under the cast to burn or sweat excessively, creating moisture inside.
If the inner padding or material of a traditional cast becomes wet, contact your healthcare provider for evaluation. Signs that require immediate medical attention include a foul odor emanating from the cast, which may indicate a serious infection or mold growth. Other warning signs are the cast feeling soft or losing its rigid shape, or experiencing persistent skin irritation, burning, or tingling beneath the cast.