Diseases & Health Conditions
Educational information about diseases, symptoms, and related treatments
Soft tissue sarcomas
What is soft tissue sarcoma? A soft tissue sarcoma (STS) is a rare cancer. It can develop in the cel...
Sore throat
A sore throat is very common and usually nothing to worry about. It normally gets better within a we...
Spina bifida
Spina bifida is a condition where a baby's spinal column and spinal cord do not form properly while...
Spinal stenosis
This information is for people who have been diagnosed with spinal stenosis. This includes cervical...
Spleen problems and spleen removal
Some people are born without a spleen, and others need to have it removed because of disease or inju...
Stillbirth
A stillbirth is when a baby dies after the 24th week of pregnancy or during birth. It is a devastat...
Stomach ache and abdominal pain
A stomach ache is a cramp or a dull ache in the tummy (abdomen). Most stomach aches don't last long...
Stomach cancer
The stomach is a stretchy, muscular bag that stores food and helps break it down during digestion. I...
Stomach ulcer
Stomach ulcers (gastric ulcers) are open sores that form on the lining of the stomach. Ulcers can al...
Streptococcus A (strep A)
Group A Streptococcus, often shortened to Strep A or GAS, is a type of bacteria that many people car...
Stroke
A stroke is a serious, life-threatening condition. It happens when the blood supply to part of the b...
Subacromial pain syndrome
If you have new or ongoing symptoms, you should visit a doctor for advice. Subacromial pain syndrom...
Sudden arrhythmic death syndrome (SADS)
Sudden arrhythmic death syndrome (SADS) refers to a sudden, unexpected death caused by cardiac arres...
Sunbed and tanning safety
Sunbeds are often used for tanning. They work by blasting your skin with ultraviolet (UV) rays. The...
Sunburn
Sunburn is skin damage caused by ultraviolet (UV) rays. The symptoms are usually mild and don't last...
Supraventricular tachycardia
Supraventricular tachycardia (SVT) causes the heart to suddenly beat much faster than normal. It ca...
Swollen glands
Swollen lymph glands are usually a sign that your body is fighting an infection. When this is the ca...
Syphilis
Syphilis is a bacterial infection. It's hard to detect, and it's one of the most easily caught sexua...
Talking to children and teenagers about cancer
People sometimes feel they're protecting children by not telling them about a cancer diagnosis. It's...
Tennis elbow
This information may be useful if you have been diagnosed with tennis elbow. If you have new or ongo...
Testicular cancer
Testicular cancer starts in one of the testicles, which are the main part of the male reproductive s...
Testicular lumps and swellings
Lumps and swellings in the testicles (balls) are quite common, and can happen to boys, men and anyon...
Thirst
If you feel thirsty all the time, without any clear reason, it isn't something to brush aside. It's...
Threadworms
Threadworms are tiny worms you may notice in your poo. They're common in children, spread easily, an...