How long does it usually take a pressure sore to heal?

The deepr the longer: Pressure ulcers vary from simple abrasion of the skin to deep into muscle with exposed bone. If pressure ulcer is superficial , healing may be complete in 3-4 weeks. For deep ulcers 12-16 weeks might be needed. Some pressure ulcer will never heal unless surgery is done.

As little as 2 hrs: As little as 2 hours of sustained pressure which compromises local blood supply (ischemia) may cause a pressure sore. Continued sustained pressure without relief may increase the stage or grade healing will depend on the stage/fade which may require hours, weeks, months or surgery to heal.

It DEpends: 1]cause 2]size 3]medical condition you should have a consultation with a board certified plastic surgeon experienced in treating pressure sores.