Many conditions, lifestyle choices, medications, and diseases interfere with your ability to heal or fight infection. You may be at risk for a more serious problem from your symptoms if you have any of the following. Be sure to tell your health professional.

Conditions

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

Lifestyle choices

• Alcohol abuse or withdrawal
• Drug abuse or withdrawal
• Smoking or other tobacco use

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

• Bleeding disorders, such as idiopathic thrombocytopenic purpura (ITP) or hemophilia
• Cancer
• Diabetes
• Gout
• Human immunodeficiency virus (HIV) infection
• Inherited bone disease
• Kidney disease
• Lupus
• Malnutrition or an eating disorder such as anorexia nervosa or bulimia
• Multiple sclerosis
• Osteoarthritis
• Osteomyelitis
• Osteoporosis
• Pseudogout (calcium pyrophosphate disease)
• Rheumatoid arthritis
• Septic arthritis
• Septic bursitis
• Sickle cell anemia