There are more than 100 types of cancers as there are more than 100 sites in the body where cancer cells can originate. Depending on the site in the body, cancer symptoms will present accordingly.

Body symptoms of cancer can be general such as extreme fatigue or unexplained weight loss, and they can be specific depending on the site of cancer in the body. Some symptoms are common while some are unusual.

Secondly, due to metastasis, symptoms also vary, as the site of metastasis is different from the site of cancer origin. We shall, therefore, discuss the symptoms of cancer broadly and then, in brief, shall touch on the specific early warning symptoms of some common cancers.

Cancer statistics and survival and death rates don’t look good though improvements are visible.

The risk of death from cancer reduces significantly if cancer is diagnosed early and treatment is initiated promptly. Symptoms can be of great help if you take them to your doctor ASAP. One hallmark sign of cancer is that a symptom persists and does not improve even after a few weeks.

General symptoms of cancer in men and women

Broadly, there are some early symptoms of cancer, which present themselves in most cases. If you are exposed to risk factors that cause cancer and experience these symptoms, you should be particularly more suspicious and consult your oncologist for a cancer check-up.

These are general symptoms and could present even with other health disorders besides cancer. Your doctor will be the best person to identify the cause of these symptoms and rule out cancer.

1. Extreme fatigue

There is an explained feeling of being very tired. This fatigue persists even after taking a rest. This could be an early warning sign of cancer that does not go away.

2. Persistent fever

Fever comes off and on. It can be intermittent or it may persist. No other apparent cause for this fever is detected. This could also be an early symptom of cancer. Some cancers such as lymphoma, leukemia, and kidney and liver cancers can present in this fashion.

3. Unexplained weight loss

Other factors of lifestyle remaining constant, there is loss of weight without any apparent reason. A loss of 5 kgs in such a fashion should be a cause for worry and action steps should be initiated. Such weight loss is often seen in cancers of the G.I. tract such as cancers of the esophagus, stomach, colon, lung, and pancreas.

4. Pain

The site of pain varies according to the site of the cancer. For example:

  • Headache presents in brain cancer.
  • Bone pain is felt at the site of bone cancer.
  • Back pain may be due to colorectal cancer, or ovarian cancer.
  • Pain in the pelvic area will occur in ovarian cancer and leukemia.
  • Pain may be among the early signs of cancer and can also indicate the onset of metastasis.

5. Abnormal growth of body hair

In certain cases, there may be excessive growth of body hair. The baldness that you see in cancer patients is due to the chemotherapy treatment and not due to cancer.

Such excessive growth of body hair may occur on the face, armpits, chest, and groin. It is called Hirsutism. It is more easily noticed in women. It is seen in:

  • Adrenocortical carcinoma is a cancer of the adrenal glands.
  • Ovarian cancer
  • Renal cell carcinoma is the cancer of the ovaries
  • Tumors of the pituitary gland

6. Skin changes in  cancer

In cancer, certain changes appear in the appearance of the skin. They could be as follows:

  • The skin could turn darker.
  • There could be jaundice (yellowish discoloration of the skin).
  • There could be itching of the skin.
  • At times, there could be reddish discoloration of the skin (erythema).

7. Loss of appetite

A simple cold or flu can make you lose your appetite. Loss of appetite can also be due to other reasons such as depression, lack of physical activity, nausea and vomiting, some drugs, etc. But, appetite loss for a prolonged period requires looking into and malignancy somewhere in the body should be ruled out.

8. Night sweats

Night sweats can be a symptom of menopause in middle-aged women but are included as one of the unusual cancer symptoms.

Night sweats occur due to cancer treatments such as chemotherapy. If your night sweats occur as a symptom, you may experience other symptoms such as fever and unexplained weight loss.

Various cancers and their symptoms

Above, we discussed the general body symptoms that present when you have cancer.

Here, we specifically discuss the early cancer symptoms of certain common cancers. This is because each cancer has typical early signs, which can give you a warning and goad you to go visit your cancer specialist to rule out cancer.

Knowing these first warning signs is important because diagnosing and treating cancer in the early stages, before metastasis sets in, is crucial to improving your chances of survival.

Do I Have Cancer? This is a question that does appear in the minds of us all – especially when we come across a person who has cancer or has died of it.

A doctor does face such questions from his patients who often ask – How do I know I have cancer?

Knowing these beginning signs of cancer will help. The symptoms explained below can also occur due to other health disorders. It will be your oncologist (cancer specialist) who will confirm whether the presenting symptoms are due to cancer or some other disease.

1. Persistent cough may indicate lung cancer or cancer of the larynx.

2. Hoarseness of voice may indicate cancer of the larynx.

3. Difficulty in swallowing may indicate cancer of the esophagus. This occurs due to cancer growth, which narrows the lumen of the esophagus.

4. Frequent indigestion and bloating may indicate stomach cancer.

5. Change in bowel routine, like persistent constipation or diarrhea, could be due to cancer of the colon or rectum.

6. Changes in bladder routine, such as frequent urination or small amounts of urine, or slow flow of urine can be an indication of renal cancer or bladder cancer or cancer of the prostate.

7. Feeling of fullness with loss of appetite and not wanting to eat could be due to stomach cancer or ovarian cancer.

8. Difficulty in speaking or chewing could be due to cancer of the tongue or mouth or larynx.

9. Any change in size, shape, or color of a mole or wart on the skin should be checked for malignancy.

10. Persistent anemia without apparent cause can be due to cancers that cause bleeding such as:

  • Colorectal cancer
  • Cervical cancer
  • Endometrial cancer
  • Bone marrow cancer

11. A lump or swelling that is felt by your hand can be an indication

  • Testicular cancer. Please note that in some men, one testicle may be bigger than the other. This is a normal occurrence and should not be construed for growth.
  • Breast cancer may show a lump in the breast.
  • A growth felt in the neck, axilla, groin, or such may be due to an enlarged lymph node. This could even be due to infection in which case the enlarged gland or lymph node subsides after treatment with antibiotics. Growth due to malignancy persists even when there is no infection and is firmer to touch. Such an enlarged lymph node is an early warning sign of metastasis.

12. Non-healing ulcer can be a sure-shot sign of malignancy if diabetes has been ruled out. Here, your doctor will first rule out diabetes. For example, a non-healing ulcer in the mouth can be due to oral cancer.

13. An unexplained and sudden increase in the size of the midriff could be due to malignant ovarian growth.  Advanced bowel cancer can cause swelling of the abdomen. This is due to a build-up of fluid in the abdomen (ascites).

14. Bleeding could be a telltale warning sign of cancer. At first, a cancer lesion may bleed slightly because its blood vessels become fragile. Later, as cancer grows and invades neighboring tissues, it may damage a blood vessel and cause bleeding. Examples:

  • Blood in the sputum could be due to lung cancer.
  • Abnormal menstrual bleeding or vaginal discharge could be due to cancer of the cervix or cancer of the endometrium of the uterus.
  • Blood in urine could be due to cancer of the kidneys or bladder.
  • Discharge tinged with blood from the nipple could be due to breast cancer.
  • Blood in stools could be due to colorectal cancer or cancer of the stomach.
  • Bleeding from the nose could be due to leukemia.

15. Jaundice could be due to liver cancer such as hepatocellular carcinoma or cancer that has spread to the liver from pancreatic or colon cancer.

16, Shortness of breath could indicate lung cancer. It is also a common symptom of breast cancer and cancer that has spread to the lungs from another organ.

17. Blood in stools. Bleeding per rectum can be due to ulcers, hemorrhoids, or infection in the gastrointestinal (G.I.) tract. Frank blood (bright red) indicates a problem in the lower GI tract, such as the rectum or the lower part of the intestines. Dark or brownish-colored blood indicates that the bleeding is in the upper part of the G.I. tract, such as the esophagus, stomach, or intestines.

18. Testicular cancer symptoms in men may include:

  • Painless or painful swelling in either testicle
  • Testicular or scrotal pain with or without swelling
  • Heaviness in the scrotum
  • Mild pain in the lower abdomen

19. Penile cancer symptoms in men may include:

  • Swelling and change in the color of the penile skin
  • Lump or lumps on the penis
  • Bleeding ulcer on the penis·
  • Discharge or bleeding from under the penile skin
  • Subcutaneous lumps in the groin area

20. Prostate cancer symptoms in men may include

  • Increased frequency of urine
  • Weak urine flow
  • The need to strain to fully empty the bladder
  • The urge to urinate more often at night
  • Hematuria (blood in the urine)
  • Erectile dysfunction.
  • Burning sensation while passing urine

21. Breast cancer symptoms in women include

  • A new lump in the breast or in the armpit
  • Swelling of part of the breast
  • Breast pain
  • Dimpling of breast skin
  • Change in color and nature of the skin in the nipple area or the breast.
  • Pain in the nipple area

I would like to reiterate and emphasize here that these signs and symptoms could be due to other non-malignant reasons also. So do not panic if you experience these symptoms. It could be and is most probably due to a non-malignant cause.

But, be aware and get malignancy ruled out. The fact does remain that these are the early signs of cancer, which come as a warning.