Symptoms of
RSD can vary in severity and length. Some experts believe there are three stages associated with RSD, marked by progressive changes in the skin, muscles, joints, ligaments, and bones of the affected area, although this progression has not yet been validated by RSD research studies. These stages include:
- Stage one
- Stage two
- Stage three.
Stage One
Stage one is thought to last from one to three months. RSD symptoms in stage one are usually severe, burning pain, along with:
- Muscle spasm
- Joint stiffness
- Rapid hair growth
- Alterations in the blood vessels that cause the skin to change color and temperature.
Stage Two
Stage two lasts from three to six months. Symptoms in this stage include:
- Intensifying pain
- Swelling
- Decreased hair growth
- Cracked, brittle, grooved, or spotty nails
- Softened bones
- Stiff joints
- Weak muscle tone.
Stage Three
In stage three, the syndrome progresses to the point where changes in the skin and bone are no longer reversible. Symptoms of RSD in this stage include pain that becomes unyielding, and may involve the entire limb or affected area. There may also be:
- Marked muscle loss (atrophy)
- Severely limited mobility
- Involuntary contractions of the muscles and tendons that flex the joints
- Limbs may become contorted.
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