The side effects of steroids in treating myasthenia gravis mainly include Cushing's syndrome characterized by specific facial and bodily features, weight gain, swelling in the lower legs, purple striae, tendency to bleed easily, poor wound healing, acne, and menstrual disorders. There could also be ischemic necrosis of the femoral or humeral heads, osteoporosis and fractures, primarily compressive vertebral fractures, as well as pathological fractures of the long bones, muscle weakness, muscle atrophy, and hypokalemia syndrome. Gastrointestinal irritation is common, primarily nausea and vomiting, as well as peptic ulcers or perforation, pancreatitis, and suppressed growth in children.