Look Up > Conditions by system
Conditions grouped by organ and body system
Brain and Nervous System
Alzheimer's Disease
Cancer, Brain
Headache, Migraine
Headache, Sinus
Headache, Tension
Meningitis
Multiple Sclerosis
Parkinson's Disease
Seizure Disorders
Stroke
Transient Ischemic Attacks

Digestion and Absorption
Appendicitis
Cancer, Colorectal
Cirrhosis of the Liver
Constipation
Crohn's Disease
Diarrhea
Diverticular Disease
Dysphagia
Food Poisoning
Gallbladder Disease
Gastritis
Gastroesophageal Reflux Disease
Hemorrhoids
Infantile Colic
Irritable Bowel Syndrome
Pancreatitis
Peptic Ulcer
Pyloric Stenosis
Ulcerative Colitis

Endocrine
Diabetes Mellitus
Hypercholesterolemia
Hyperparathyroidism, Primary
Hyperthyroidism
Hypoglycemia
Hypoparathyroidism
Hypothyroidism
Thyroiditis

Eye/Ear/Nose/Throat
Allergic Rhinitis
Cataracts
Conjunctivitis
Glaucoma
Laryngitis
Macular Degeneration
Otitis Media
Pharyngitis
Sinusitis
Uveitis

Genitourinary
Benign Prostatic Hyperplasia
Cancer, Prostate
Prostatitis
Sexual Dysfunction
Sexually Transmitted Diseases
Urethritis
Urinary Incontinence
Urinary Tract Infection in Women
Urolithiasis

Gynecologic
Amenorrhea
Cancer, Breast
Dysmenorrhea
Endometriosis
Menopause
Pelvic Inflammatory Disease
Preeclampsia
Premenstrual Syndrome (PMS)
Spontaneous Abortion
Vaginitis

Heart and Circulatory
Anemia
Angina
Atherosclerosis
Chronic Obstructive Pulmonary Disease
Congestive Heart Failure
Edema
Endocarditis
Hypertension
Myocardial Infarction
Pericarditis
Shock
Syncope
Varicose Veins

Infectious Diseases
Candidiasis
Common Cold
Hepatitis, Viral
Herpes Simplex Virus
Herpes Zoster (Varicella-Zoster) Virus
HIV and AIDS
Influenza
Intestinal Parasites
Lyme Disease
Measles
Mononucleosis
Mumps
Rubella
Tuberculosis

Integumentary
Acne
Alopecia
Burns
Cancer, Skin
Cellulitis
Cutaneous Drug Reactions
Dermatitis
Eczema
Hair Disorders
Insect Bites and Stings
Nail Disorders
Psoriasis
Roseola
Skin Disorders, Erythema
Skin Disorders, Photodermatitis
Warts
Wounds

Musculoskeletal
Bursitis
Cancer, Bone
Carpal Tunnel Syndrome
Fibromyalgia
Gout
Low Back Pain
Muscular Dystrophy
Osteoarthritis
Osteomyelitis
Osteoporosis
Raynaud's Phenomenon
Reiter's Syndrome
Rheumatoid Arthritis
Sprains and Strains
Temporomandibular Joint Dysfunction
Tendinitis

Other
Alcoholism
Amyloidosis
Anaphylaxis
Angioedema
Chronic Fatigue Syndrome
Fever of Unknown Origin
Food Allergy
Frostbite
Heat Exhaustion
Hemophilia
Hyperkalemia
Hypothermia
Insomnia
Leukemia
Lymphoma
Motion Sickness
Obesity
Radiation Damage
Serum Sickness
Systemic Lupus Erythematosus

Psychiatric
Anorexia Nervosa
Anxiety
Attention-Deficit/Hyperactivity Disorder
Bulimia Nervosa
Dementia
Depression
Hypochondriasis
Post-traumatic Stress Disorder
Stress

Pulmonary
Asthma
Bronchitis
Cancer, Lung
Cough
Cystic Fibrosis
Pertussis
Primary Pulmonary Hypertension
Pulmonary Edema
Sleep Apnea