Causes:
Muscle Weakness or Lack of Balance:
Weak abdominal or back muscles can make it difficult for the body to maintain balance.
Bone Anomalies:
Congenital or acquired bone problems can cause posture disorders.
Fibromyalgia:
Fibromyalgia, a condition that causes chronic muscle pain and tenderness, can also contribute to posture disorders.
Scoliosis:
Lateral curvature of the spine can cause posture disorders.
Rheumatoid Arthritis:
Rheumatoid arthritis, an autoimmune disease that causes joint inflammation, can contribute to posture disorders.
Spinal Cord Injuries:
Spinal cord injuries can affect the normal posture of the body.

Non-Surgical Treatment Methods:
Physical Therapy and Exercise:
Physical therapy and special exercise programs can be applied to correct posture, increase muscle strength and improve flexibility.
Posture Training:
Posture training by physical therapists can help to learn correct posture habits.
Protective Devices:
Supportive devices or corsets can help correct posture and support the muscles.
Pain Management:
Painkillers or anti-inflammatory drugs can be used to manage the pain associated with posture disorders.

Surgical Treatment Methods:
Scoliosis Surgery:
In case of scoliosis, surgical intervention for spinal correction can be considered.
Bone Correction Surgery:

Surgical procedures to correct congenital or accidental bone anomalies.

Surgical intervention is usually considered a last resort for posture disorders and is usually managed with non-surgical methods.