- Kala-Azar — Leishmaniasis
- Kawasaki Disease
- Keratitis, Acanthamoeba
- Keratitis, Fungal — Eye Infections
- Kidney Cancer
- Kidney Disease
- Klebsiella Infection
- Kyasanur Forest disease
- Kaposi Sarcoma
- Keloids – Scars
- Kernicterus – Jaundice
- Kidney Biopsy – Kidney Tests
- Kidney Cysts
- Kidney Failure
- Kidney Infections – Urinary Tract Infections
- Kidney Stones
- Kidney Transplantation
- Klinefelter Syndrome
- Knee Injuries and Disorders
- Knee Replacement
- Kyphosis -Spine Injuries and Disorders