Don’t get discouraged studying medical terminology. A large group of medical terms are notorious for being difficult to spell. These medical terms are commonly misspelled:

Abscess, adolescence, alimentation, alopecia, Alzheimer, analyze, aneurysm, anorexia, arrhythmia, ascites, asphyxia, asystole, auscultation, callus, catheter, Caucasian, chickenpox, cirrhosis, curettage, decubitus, diabetes mellitus, diaphoresis, diaphragm, dilatation, diphtheria, eczema, effusion, elicit, epididymitis, fascia, flaccid, gallbladder, gangrene, gauge, gonorrhea, hemoptysis, hemorrhoid, humerus, hygiene, icterus, inoculate, intraocular, intussusception, ischemia, melanin, menstruation, oophorectomy, ophthalmology, orthopnea, pacemaker, palliative, palpate, palpitation, perineum, periosteum, peritoneum, peroneal, prosthesis, prostate, protocol, pruritus, rhythm, sagittal, sedentary, sequela, sieve, spleen, splenectomy, supersede, syncope, syphilis, tonsils, tonsillectomy, tricuspid, ventricle, vertical, and xiphoid.