A cat that has raised scabs on its body but does not shed hair is usually caused by skin secretions scabbing at the roots of the hair. It may also be an early stage of skin disease. It is best to go to the hospital or check it yourself with a Wood's lamp. Next, confirm whether it is a skin disease to avoid worsening the condition. Where there are scabs, the hair can be gently pulled off, and then the affected area can be cleaned to facilitate treatment.