- Hepatitis
- Herpes Simplex
- Haemophilia
- Hemangioma
- Horner Syndrome
- Hypertensive Retinopathy
- Helminthiasis (Soil-transmitted helminth infections)
- Hypertension (High Blood pressure)
- Human papillomavirus (HPV) infection and cervical cancer
- Heat-Related Illnesses and Heat waves
- Hand, Foot and Mouth Disease
- Hypermetropia
- Heterophoria
- Hypervitaminosis A