Health A–Z
Conditions, symptoms, tests and everyday health.
Health Glossary — definitions A–Z →18 health topics
A
- Abdominal Pain and Understanding the Possible Causes
Symptoms & conditions
Learn why abdominal pain has many causes, what details help diagnosis and when pain requires urgent or emergency assessment.
- Acne and Preventing Scars
Symptoms & conditions
Understand acne, gentle skin care, treatment expectations and why painful acne or scarring deserves early medical review.
B
- Back Pain and Returning Safely to Activity
Symptoms & conditions
Learn about common back pain, staying active, when scans may help and the neurological symptoms that require emergency care.
C
- Constipation and Building Comfortable Bowel Habits
Symptoms & conditions
Understand constipation, gradual changes that may help and symptoms that need investigation rather than repeated self treatment.
- Cough and When It Needs Medical Attention
Symptoms & conditions
Understand common causes of cough, practical relief, when testing may help and warning signs that require urgent assessment.
D
- Diabetes and Protecting Everyday and Future Health
Symptoms & conditions
Understand diabetes types, diagnosis, daily care, complication prevention and symptoms of low or dangerously high blood glucose.
E
- Erection Problems and Getting Effective Help
Symptoms & conditions
Understand erectile dysfunction, its links with general health, treatment options and why unverified sexual enhancement products can be unsafe.
F
- Fever and Finding the Underlying Cause
Symptoms & conditions
Understand fever, supportive care and when adults, children and higher risk patients need urgent medical attention.
H
- Hair Loss and Understanding the Cause
Symptoms & conditions
Learn why hair loss happens, how shedding differs from scarring, and why diagnosis matters before supplements or treatment.
- Headaches and Recognising a Change in Pattern
Symptoms & conditions
Understand common headache patterns, practical management and sudden or neurological warning signs that require emergency assessment.
- Hypertension and Protecting Your Long Term Health
Symptoms & conditions
Learn how high blood pressure is diagnosed, how to measure it accurately and why treatment matters even without symptoms.
I
- Irregular Periods and When to Seek Advice
Symptoms & conditions
Learn about common causes of irregular periods, pregnancy testing, appropriate evaluation and bleeding symptoms that need urgent care.
N
- Nausea and Vomiting and Preventing Dehydration
Symptoms & conditions
Learn common causes of nausea, how to maintain fluids and the vomiting symptoms that need urgent assessment.
O
- Obesity and Supportive Long Term Care
Symptoms & conditions
Understand obesity as a long term condition, how health risks are assessed and the roles of nutrition, activity, medicines and surgery.
R
- Runny Nose and Distinguishing Colds from Allergies
Symptoms & conditions
Learn why a nose runs, how cold and allergy patterns differ, and how to use nasal products and rinses safely.
S
- Skin Rashes and Recognising Warning Signs
Symptoms & conditions
Understand common rash patterns, gentle skin care and signs of allergic reactions or serious illness that require urgent attention.
- Sore Throat and When Treatment Is Needed
Symptoms & conditions
Understand common causes of sore throat, comfort measures, antibiotic decisions and symptoms that need emergency attention.
U
- Urinary Tract Infection and Getting the Right Treatment
Symptoms & conditions
Understand UTI symptoms, urine testing, antibiotic decisions, recurrence and the warning signs of kidney infection or serious illness.