There are more than 200 types of cancerous diseases. The most common cancers include lung, bladder, breast, prostate, kidney, ovarian, pancreatic, endometrial, and colorectal cancer, as well as melanoma and leukemia.

Most of these cancers are diagnosed in their advanced stages, and therefore they have a low survival rate.

In order for the cancer to be successfully treated, it should be detected in the early stages, which is why you should pay attention to the early signs and symptoms of this disease. Here are the most common warning signs of cancer.

Constant Cough and Chest Pain

Certain types of cancer, such as lung tumors and leukemia, can have symptoms which resemble those of a cough or bronchitis.

The coughing can occur repeatedly, or it may continue for a prolonged period of time. Another sign of these cancers is a pain in the chest, which extends in the shoulder and stretches towards the arm.

In addition, a persistent or a chronic cough, as well as hoarseness of the voice, can be an indication of a thyroid or esophageal cancer.

Unusual Lump or Swelling

An appearance of unusual lumps on the abdomen, breasts, groin, testicles, underarms, neck, or other parts of the body has to be examined by a physician, especially if the lumps persist for more than three weeks.

The occurrence of an enlarged lump or lump node in the underarm area is one of the most common signs of breast cancer. This type of cancer can also be responsible for causing redness, soreness, and swelling of the breast.

Abnormal Bleeding

Coughing up or vomiting blood can be a sign of lung, stomach, or esophageal cancer. Immoderate bruising and bleeding may indicate leukemia. Colorectal cancer is characterized by bleeding from the GI tract.

The appearance of blood in the stool is a sign of bowel cancer while blood in the urine is a symptom of urinary tract infection, which can result from kidney or bladder cancer.

Moreover, bleeding in the middle of periods or after menopause can be an indication of endometrial and uterine cancer.

Nail Changes

Various types of cancer, such as lung, liver, or skin cancer, can be responsible for causing some unusual changes on the nails.

Clubbing of the fingers or toes is a sign of lung cancer while dark spots under the nails are a symptom of skin cancer.

Pale or white nails may result from a poor liver function, which can be caused by different conditions, including liver cancer.

Sudden Weight Loss

A sudden and unexplained loss of weight is a common symptom of breast and lung cancer. The loss of weight is likely to happen when the cancer goes to the liver and weakens its function, which is to remove toxins and to control the appetite. Certain digestive cancers, such as colon cancer, may also result in weight loss.

Change in a Mole or Skin Growth

The appearance of any changes in the skin is usually neither dangerous nor painful. However, if you notice certain skin changes, such as new growths, spots or sores that do not heal, or if there is a change of size or color of an already-existing mole, you need to consult your doctor.