It is mostly linked to the environment people are sourounded with. To start, the person needs to recognize there is a need to change. Then set SMART goals to make that change. A healthy body image isnt a destination, its a lifestyle and a shift in mindest. Its the body and mind equilibrium.
Societal influneces are the main cause followed by an incapacity to perform certain movement, or activities...
People can maintain a healthy body Image by doing good nutrition, regular exercise, emotional control and a good mental health, but with Low self esteem or poor diet and psychological problems are the forces that work to make people feel bad about their selfs or body images.
You might want to see a specialist if you have a certain medical issue, and you may want to see a primary physician to be diagnosed with that certain disease.