- Radiation treatment
- Radiation treatment – side effects
- Rare disorders
- Rashes
- Raynaud's syndrome
- Reactive airways dysfunction syndrome
- Reactive arthritis
- Recovery position
- Red eye
- Reflux – infant & child
- Reflux disease (GORD)
- Renal failure
- Renal function
- Respiratory disease
- Respiratory diseases
- Respiratory syncytial virus (RSV) infection
- Respiratory tract infection topics
- Respiratory tract infections
- Restless legs syndrome
- Retinal detachment
- Rheumatic fever – children
- Rheumatoid arthritis
- Rickets
- Ring pessaries
- Ringworm
- Rongoā Māori
- Rotavirus & vaccine
- Rubella (German measles)