Cast or Splint Care

ExitCare ImageCasts and splints support injured limbs and keep bones from moving while they heal. It is important to care for your cast or splint at home.  


  • Keep the cast or splint uncovered during the drying period. It can take 24 to 48 hours to dry if it is made of plaster. A fiberglass cast will dry in less than 1 hour.

  • Do not rest the cast on anything harder than a pillow for the first 24 hours.

  • Do not put weight on your injured limb or apply pressure to the cast until your caregiver gives you permission.

  • Keep the cast or splint dry. Wet casts or splints can lose their shape and may not support the limb as well. Also, wet skin can become infected. Cover the cast or splint with a plastic bag when bathing or when out in the rain or snow. If the cast is on the trunk of the body, take sponge baths until the cast is removed.

  • Keep your cast or splint clean. Soiled casts may be wiped with a moistened cloth.

  • Do not place any foreign objects under your cast or splint. Do not try to scratch the skin under the cast with any object. The object could get stuck inside the cast. Also, scratching could lead to an infection.

  • Do not remove padding from inside your cast.

  • Exercise all joints next to the injury that are not immobilized by the cast or splint. For example, if you have a long leg cast, exercise the hip joint and toes. If you have an arm cast or splint, exercise the shoulder, elbow, thumb, and fingers.

  • Elevate your injured arm or leg on 1 or 2 pillows for the first 1 to 3 days to decrease swelling and pain. It is best if you can comfortably elevate your cast so it is higher than your heart.


  • Your cast or splint cracks.

  • Your cast or splint is too tight or too loose.

  • You experience unbearable itching inside the cast.

  • Your cast becomes wet or develops a soft spot or area.

  • You have a bad smell coming from inside your cast.

  • You get an object stuck under your cast.

  • Your skin around the cast becomes red or raw.

  • You develop a new pain or worsening pain after the cast has been applied.


  • You have fluid leaking through the cast.

  • You are unable to move your fingers or toes.

  • You have discolored, cool, painful, or very swollen fingers or toes beyond the cast.

  • You have tingling or numbness around the injured area.

  • You have severe pain or pressure under the cast.

  • You develop any difficulty with your breathing or have shortness of breath.

  • You develop chest pain.