Physical therapy can be used to treat things like:

• Back pain,
• Neck pain,
• Shoulder pain,
• Ankle pain,
• Sciatica pain,
• Problems caused by wear-and-tear or injuries of the muscles, tendons or joints,
• Osteoarthritis,
• Rheumatoid arthritis,
• Cardiovascular (heart and blood vessel) diseases,
• Respiratory diseases (affecting the airways),
• Neurological (nerve-related) diseases such as Parkinson's, stroke or multiple sclerosis,
• Developmental problems in children, for instance affecting their muscles or bones.

Physical therapy can also be used to help people who need assistance or nursing care - for instance, to practice doing certain movements in a particular order, strengthen muscles and prevent falls.

Read more at: https://www.ncbi.nlm.nih.gov/books/NBK561514/