Conditions that start with ‘O’
- ocular hypertension
- ocular rosacea
- ocular surface squamous neoplasia
- oligodendroglioma
- onychomycosis due to dermatophyte
- open angle glaucoma
- ophthalmia neonatorum
- opioid overdose
- opioid-induced respiratory depression
- osteoarthritis
- osteoarthritis of the knee
- osteomalacia
- osteoporosis
- osteosarcoma of bone
- otitis externa
- ovarian germ cell tumor carcinoma