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IBD (Inflammatory Bowel Disease), Proctocoletomy and Ileostomy for IBS (Irritable Bowel Syndrome) IBS (Irritable Bowel Syndrome), Deciding About Tests IBS (Irritable Bowel Syndrome), Medical History and Physical Examination for IBS (Irritable Bowel Syndrome), Physical Examination and Medical History for Ibuprofen Use in Young Children ICD: Living Well With It Ice and Cold Packs Ice for Heel Pain Ice Massage Ideas to Help You Cut Back On or Stop Using Alcohol IDET (Intradiscal Electrothermic Therapy) for Low Back Pain Ileoanal Anastomosis for Ulcerative Colitis Iliotibial Band Syndrome Illness Patterns in Schizophrenia Imaging Tests for Epilepsy Immune System Immunization Safety Immunization Schedules Immunizations Immunizations and Pregnancy Immunizations for Premature Infants Immunizations: Questions Parents Ask Immunoglobulin Immunotherapy (Allergy Shots) for Allergic Rhinitis Immunotherapy (Allergy Shots) for Asthma Immunotherapy for Allergic Rhinitis and Allergic Asthma, Deciding About Immunotherapy for Allergies to Insect Stings Impaired Glucose Tolerance Impetigo Implantable Cardioverter-Defibrillator (ICD) Implantable Cardioverter-Defibrillator (ICD) for heart failure, Deciding about Implantable Cardioverter-Defibrillator (ICD), Living With a Importance of Immunizations Importance of Personal Relationships for Lowering Stress Impotence (Erection Problems) Improving Sleep When You Have Chronic Pain Improving Your Balance: Quick Tips In Vitro Fertilization for Infertility In Vitro Fertilization for Tubal Infertility, Deciding About Incision Care After Surgery Incision of External Hemorrhoids Incontinence, Urinary in Men Incontinence, Urinary in Women Independent Living for People With Disabilities Indirect Coombs Test Indoor Air Pollution Indoor Allergens, Avoiding Indoor Tanning: Is It Safe? Induction Abortion Infant and Toddler Health Infant Crying Infant Formulas Infant Massage Infantile Spasms (West Syndrome) Infected Prostate Stones Infectious Mononucleosis, Liver Tests for Infertility Testing, Deciding About Infertility Tests Infertility Treatment for Women With PCOS Infertility, Artificial Insemination for Infertility, Fallopian Tube Surgery for Infertility, Gamate Intrafallopian Transfer (GIFT) for Infertility, In Vitro Fertilization for Infertility, Intracytoplasmic Sperm Injection for Infertility, Male or Female Infertility, Varicocele Repair for Infertility, Zygote Intrafallopian Transfer (ZIFT) for Infertility: Aging Egg Supply Infertility: Emotional and Social Concerns Infertility: Ethical and Legal Concerns Infertility: Factors That Affect Treatment Success Infertility: Problems With Fallopian Tubes Infertility: Problems With Ovulation Infertility: Problems With the Man's Reproductive System Infertility: Problems With the Uterus and Cervix Infertility: Questions to Ask About Assisted Reproductive Technology Infertility: Questions to Ask About Medicine or Hormone Treatment Infertility: Questions to Ask About Surgery Infertility: Setting Limits on Testing Infertility: Setting Limits on Treatment Infertility: Should I Have Treatment? Infertility: Thinking About Adoption Inflammatory Bowel Disease (Crohn's Disease) Inflammatory Bowel Disease (IBD), Proctocoletomy and Ileostomy for Inflammatory Bowel Disease (Ulcerative Colitis) Inflammatory Bowel Disease and Cancer Risk Inflammatory Bowel Disease During Pregnancy Inflammatory bowel disease: Changing your diet Inflammatory Bowel Disease: Enteral or Total Parenteral Nutrition Inflammatory Bowel Disease: Rare Complications Inflammatory Breast Cancer Influenza (Flu) Vaccine (Inactivated or Recombinant): What You Need to Know Influenza (Seasonal Flu) Infrared Photocoagulation for Hemorrhoids Ingrown Toenail Inguinal Hernia Inguinal Hernia, Laparoscopic Repair of Inguinal Hernia, Open Repair of Inguinal Hernia: Should I Have Surgery Now, or Should I Wait? Inguinal Hernia: Surgery in Adults Inguinal Hernia: Surgery in Children Inhalant Use Inhaled corticosteroids for asthma Inhaled Corticosteroids for Long-Term Control of Asthma Inhaled quick-relief medicines for asthma Inhaler (Metered-Dose) for Breathing Problems Injury Prevention Injury to the Tailbone (Coccyx) Inpatient and Outpatient Treatment for Substance Use Problems Insect Bites and Stings and Spider Bites Insect Repellents Insect Sting Allergies Insect Sting Allergies, Allergy Shots for Insect Sting Allergies, Deciding about Allergy Shots Insect Sting Allergies, Immunotherapy (Allergy Shots) for Insect Sting Allergies: Who Is Affected Insect Sting Care Insect Stings: How to Remove the Stinger Insects That Commonly Sting Insemination for Infertility Insemination Procedures for Infertility Insomnia Insomnia (Sleep Problems), Age 12 and Older Insomnia: Improving Your Sleep Insomnia: Should I Take Sleeping Pills? Insulin for Type 1 and Type 2 Diabetes Insulin Pump, Deciding About Insulin Pump, Living with Insulin Resistance Insulin shots for children with diabetes Insulin shots for gestational diabetes Insulin shots, Giving yourself Insulin: Reusing Syringes and Lancets Safely Insulin-Dependent Diabetes Mellitus Intentional Head Injury (Shaken Baby Syndrome) Interactive Tool: Are You Depressed? Interactive Tool: Are You Ready to Quit Smoking? Interactive Tool: Do You Have a Drinking Problem? Interactive Tool: Do Your BMI and Waist Size Increase Your Health Risks? Interactive Tool: From Embryo to Baby in 9 Months Interactive Tool: How Bad Are Your Urinary Symptoms From Benign Prostatic Hyperplasia (BPH)? Interactive Tool: How Does Smoking Affect Your Lifespan? Interactive Tool: How Does Smoking Increase Your Risk of Heart Attack? Interactive Tool: How Many Calories Did You Burn? Interactive Tool: How Much Is Smoking Costing You? Interactive Tool: How Well Do You Bounce Back? Interactive Tool: Should I Consider Surgery for My Low Back Problem? Interactive Tool: What Is Your Child's BMI? Interactive Tool: What Is Your Due Date? Interactive Tool: What Is Your Stress Level? Interactive Tool: What Is Your Target Heart Rate? Interactive Tool: When Are You Most Fertile? Interactive Tool: Which Health Screenings Do You Need? Interactive Tools Intermittent Catheterization for Men Intermittent Catheterization for Women Intermittent Claudication Intermittent Claudication Intestinal (Large) Problems Intestinal Transplant for Crohn's Disease Intra-Aortic Balloon Pump Intracytoplasmic Sperm Injection for Infertility Intradiscal Electrothermal Therapy (IDET) for Low Back Pain Intraocular (Uveal) Melanoma Treatment (PDQ®): Treatment - Health Professional Information [NCI] Intraocular (Uveal) Melanoma Treatment (PDQ®): Treatment - Patient Information [NCI] Intraocular Lens (IOL) Implants Intraoperative Cholangiogram Intrauterine Device (IUD) for Birth Control Intrauterine Fetal Blood Transfusion for Rh Disease Intrinsic Acute Kidney Injury Introducing Foods to Your Baby Intussusception Iron Deficiency Anemia Iron Toxicity Irregular Menstrual Periods Irregular or Missed Periods Irritable Bowel Syndrome (IBS) Irritable Bowel Syndrome, History and Physical Examination for Irritable Bowel Syndrome, Medical History and Physical Examination for Irritable Bowel Syndrome, Physical Examination and Medical History for Irritable Bowel Syndrome: Bile Acid Binding Medicines Irritable Bowel Syndrome: Controlling Symptoms With Diet Irritable Bowel Syndrome: Criteria for Diagnosis Irritable Bowel Syndrome: Should I Have Tests for IBS Symptoms? Ischemia Isolated Systolic High Blood Pressure Isotretinoin for Severe Acne, Deciding About Taking Itching and Dry Skin Itching Relief IUD Insertion IUD Removal IV Fluid Hydration at End of Life, Deciding About Ivermectin for Head Lice Izzy's Story: Living With the DASH Diet