Health A-Z
H
- Haemochromatosis
- Haemophilia
- Haemophilus influenzae type b (Hib)
- Hair dye reactions
- Hamstring injury
- Hand, foot and mouth disease
- Hay fever
- Head and neck cancer
- Head injury and concussion
- Head lice and nits
- Headaches
- Health anxiety
- Hearing loss
- Heart attack
- Heart block
- Heart failure
- Heart rhythm problems (arrhythmia)
- Heart valve disease
- Heartburn and acid reflux
- Heat exhaustion and heatstroke
- Heat rash (prickly heat)
- Heavy periods
- Henoch-Schönlein purpura (HSP)
- Hepatitis
- Hepatitis A
- Hepatitis B
- Hepatitis C
- Hereditary haemorrhagic telangiectasia (HHT)
- Hereditary spastic paraplegia
- Hernia
- Herpes simplex eye infections
- Herpetic whitlow (whitlow finger)
- Hiatus hernia
- Hidradenitis suppurativa (HS)
- High blood pressure
- High blood sugar (hyperglycaemia)
- High cholesterol
- Hirschsprung's disease
- HIV and AIDS
- Hives
- Hoarding disorder
- Hodgkin lymphoma
- Homocystinuria
- Human papillomavirus (HPV)
- Huntington's disease
- Hydrocephalus
- Hydronephrosis
- Hyperparathyroidism
- Hypoparathyroidism
- Hypothermia
