Earache and ear pain is common, particularly in young children. It’s not usually a sign of anything serious, but it can be painful.
Read about the signs of early or delayed puberty, what can cause it and how it can be treated.
Read about what problems a build-up of earwax can cause, why it happens, and what can be done about it.
Read about the different types of eating disorders including anorexia nervosa, bulimia, and binge eating disorder, including possible causes and treatments available.
Find out about Ebola, including what the current threat is, what the symptoms are, what to do if you fall ill, and what precautions you can take.
Read about echocardiograms, including why they're done, what happens during the test, and what the risks are.
Ectropion is where the lower eyelid droops away from the eye and turns outwards. It's not usually serious, but can be uncomfortable.
Edwards' syndrome, also known as trisomy 18, is a serious genetic condition caused by an additional copy of chromosome 18 in some or all of the cells in the body.
Ehlers-Danlos syndromes (EDS) are a group of rare inherited conditions that affect connective tissue. Find out about the symptoms, causes and treatments.
Ejaculation problems such as premature, delayed and retrograde ejaculation are a common cause of sexual problems in men.
Read about the common causes of arm pain, including sprains, tennis or golfer's elbow and bursitis, plus simple self care techniques, such as ice packs and painkillers.
Read about electrocardiograms (ECGs), including why they're done, what happens and what the potential risks are.
Read about why an electroencephalogram (EEG) recording may be needed and find out what happens before, during and after the test.
Find out why and when an electrolyte test may be needed. Also, read about the possible treatments that may be recommended if you have an electrolyte imbalance.
Find out what an embolism is, what causes it, what the risk factors are and how it can be treated and prevented.
Read more about emollients, which are moisturising treatments applied directly to the skin. They're often used to treat skin conditions like eczema.
Empyema is the medical term for pockets of pus that have collected inside a body cavity. They can form if a bacterial infection is left untreated, or if it fails to fully respond to treatment. The term empyema is most commonly used to refer to pus-filled pockets that develop in the pleural space. This is the slim space between the outside of the lungs and the inside of the chest cavity.
Find out what an endoscopy is, including when it's used, how it's done, and the possible side effects.
Find out about enhanced recovery, an evidence-based approach that helps people to recover more quickly after having major surgery.
Read more about epididymitis, which is when the epididymis (a coiled tube at the back of each testicle that stores and carries sperm) becomes swollen and painful.
Epiglottitis is inflammation and swelling of the epiglottis. In most cases, it's caused by infection. The epiglottis is a flap of tissue that sits beneath the tongue at the back of the throat.
Find out about erythema multiforme, a skin reaction that usually causes a rash for a few weeks.
Read about erythema nodosum, which is swollen fat under the skin causing bumps and patches that look red or darker than surrounding skin. It usually goes away by itself, but it can be a sign of something serious.
Find out about erythromelalgia, which is a rare condition that causes episodes of burning pain and redness in the hands and feet, and sometimes the arms, legs, ears and face.
Read about euthanasia (deliberately ending a person's life to relieve suffering) and assisted suicide (deliberately assisting a person to kill themselves). Both are illegal in England.
Find out about Ewing sarcoma, a rare type of bone cancer. Read about the symptoms and how it's diagnosed and treated.
Read about excessive daytime sleepiness (idiopathic hypersomnia), an unexplained condition that causes you to feel very sleepy during the day, even if you had a good night's sleep.
Read about eye cancer, including the symptoms, causes, treatments, and outlook.
Find out what to do if you have an eye injury, including when to get medical help.
Find out what to do if you have a lump on your eyelid, or an eyelid that's swollen, sticky, itchy, drooping or twitching.
Read about the routine eye checks that newborn babies have and eye tests for children. Eye checks are important because they allow any problems to be identified early on in a child's development.
Find out about excessive thirst, including what might be causing it, when to see a GP and the difference between dry mouth and excessive thirst.
Read about exophthalmos (proptosis), a medical term for a bulging or protruding eyeballs.
An ectopic pregnancy is when a fertilised egg implants itself outside of the womb, usually in one of the fallopian tubes.
Find out about encephalitis, a rare but serious condition that causes inflammation of the brain.
Endocarditis is a rare and potentially fatal type of heart infection. It's specifically an infection of the inner lining of the heart (the endocardium).
Endometriosis is a common condition where small pieces of the womb lining (the endometrium) are found outside the womb.
Epidermolysis bullosa (EB) is a general term used to describe a group of rare, inherited skin disorders that cause the skin to become very fragile.
An epidural is an injection in your back to stop you feeling pain in part of your body, commonly given for pain relief in childbirth and in some types of surgery.
Find out about epilepsy, where sudden bursts of electrical activity in the brain cause seizures or fits.
Read about erectile dysfunction, which is the inability to get and maintain an erection that is sufficient for satisfactory sexual intercourse.
Find out about possible causes and treatments for excessive sweating (hyperhydrosis).
Find out about excessive hair growth (hirsutism), including when to see a GP and information about treatments and causes.
Find out about early menopause, when a woman's periods stop before the age of 45, and the treatment available
Ear infections are very common, particularly in children. See a GP if they don't settle in a couple of days.
This Guide contains information about what you can expect during end of life care and the things you may want to think about. These include how and where you want to be cared for, as well as financial issues.