Many conditions, medications, and diseases interfere with the ability to heal or fight infection. Your child may be at risk for a more serious problem if he or she has any of the following. Be sure to tell your child's health professional.

Conditions

• A hip problem or condition present since birth (congenital defect)
• Previous injury
• Previous surgery to hip area

Medications

• Blood-thinning medications, such as warfarin, heparin, and aspirin
• Chemotherapy or radiation therapy
• Corticosteroids, such as prednisone
• Medications to prevent organ transplant rejection

Diseases

• Cancer
• Cerebral palsy
• Diabetes
• Hemophilia
• Human immunodeficiency virus (HIV) infection
• Idiopathic thrombocytopenic purpura (ITP)
• Inherited bone disease
• Juvenile rheumatoid arthritis
• Kidney disease
• Lupus
• Malnutrition or an eating disorder such as anorexia nervosa or bulimia
• Muscular dystrophy
• Osteomyelitis
• Septic arthritis
• Septic bursitis
• Sickle cell anemia