Oh! Learn the health and medical words that start with O.

• What Is Osteoporosis?
• What Is Otalgia?
• What Is Otitis Media?
• What's Occupational Therapy?
• What's an Occupational Therapist?
• What's an Oncologist?
• What's an Operation?
• What's an Ophthalmologist?
• What's an Optician?
• What's an Optometrist?
• What's an Orthodontist?
• What's an Orthopedic Surgeon?
• What's an Otolaryngologist?

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

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