From weight loss to sweating, here are the tell-tale signs of serious illness

Early detection of a malignant tumor is essential for the management of the disease and its timely cure.

Recognizing the most "unbelievable" symptoms and even immediately implementing the necessary controls has always been important, even more so after the scientific findings of a global increase of 79% of new cancer cases in people under the age of 50 in three the last decades.

Cancer can appear in people in different ways. One person's symptoms may differ from others, while some are asymptomatic. It is important to know what is normal for you and to talk to your doctor if you notice any unusual changes.

This can help diagnose cancer at an early stage, when treatment is more likely to be successful.

According to Cancer Research UK, the first signs may be a lump, a strange mole, abnormal bleeding or sudden weight loss.

There are more than 200 types of cancer with different symptoms, say researchers at Cancer Research UK, which compiled and published a list of six suspicious signs:

There are many reasons why you may feel more tired than usual, especially during periods of intense stress or if you have trouble sleeping. But if you feel tired all the time or for no apparent reason, it may be an indication that you should see a doctor.

Night sweats or fevers can be due to infections or adverse drug reactions, while hot flashes are common during menopause. However, sweating is also a symptom of cancers such as leukemia and liver cancer. In case of very heavy night sweats or unexplained fever, seek medical advice.

If one or both of the above are not due to an injury, they should be checked by a doctor. Bleeding can be found in faeces, urine, productive cough mucus, etc. In women, unexplained vaginal bleeding can occur between periods, after sex, or after menopause. Regardless of the amount of blood or its color (red to brown and almost black), talk to your doctor.

Pain and discomfort are our body's way of telling us that something is wrong. Aches and pains are more common as we get older, but when they are unexplained or persistent in any part of the body, it could be a sign of something more serious.

Small changes in weight over time are completely normal, but losing a few pounds without making any effort is a reason to inform your doctor. It can be a sign of health problems other than cancer.

A lump or swelling that suddenly appeared anywhere on your body and still persists should be taken seriously. They can be placed on the neck, armpit, stomach, groin, chest and even on the testicles.