- IBD
- IBS
- Illegal drugs
- Immunisation – child
- Immunisation – older adults
- Immunisation – older children and teenagers
- Immunisation – splenectomy
- Immunisation and vaccines
- Immunise – why?
- Impaired fasting glucose
- Impaired glucose tolerance
- Impetigo
- Impotence
- Incontinence
- Indigestion
- Infant colic
- Infectious diseases
- Infectious mononucleosis
- Infertility
- Inflammatory bowel disease
- Influenza
- Influenza (flu) topics
- Informed consent
- Ingrown toenail
- Insect bites and stings
- Insomnia
- Insulin – starting
- International normalized ratio (INR)
- Iron and iron deficiency topics
- Iron deficiency
- Iron overload
- Irritable bowel syndrome
- Ischaemic heart disease (IHD)
- Itching
- Itchy ear