The early warning signs of cancer may be difficult to detect because the symptoms may be similar to less serious conditions, such as the flu. Also, some cancers, such as lung or pancreatic cancer, may not show warning signs in early stages. Many cancers share common early warning signs, while some are specific to certain cancers. General early warning signs of cancer include:
- Unexplained weight loss/gain
- Pain that does not go away
- Loss of appetite
- Nausea, vomiting
- Skin changes, such as a rash, redness, tenderness or swelling
- Blood in the stool, urine, semen or sputum
- Persistent cough or hoarseness
- Difficulty emptying the bowel or bladder
Many symptoms share characteristics of other, non-cancerous conditions. If you experience persistent symptoms or other changes in your health, it’s important to see a doctor as soon as possible.
Cancer symptoms in men and women
Although men are more likely to develop cancer than women, many common cancers, such as lung, colorectal, bladder, melanoma, leukemia and lymphoma, and their symptoms may occur in either gender. Certain cancers, however, are gender specific and may cause unique symptoms.
Cancer symptoms in men
Cancers unique to men affect the male reproductive system—the prostate, testicles and penis. Symptoms of these cancers include:
- Difficulty urinating
- Painful urination or ejaculation
- Blood in the urine or semen
- Lumps, growths or physical changes in the penis or testicles
- Pain in the groin, abdomen or lower back
Cancer symptoms in women
Breast cancer and cancers specific to women may affect the breasts and the female reproductive system. Symptoms of these cancers include:
- A lump or growth
- Red, itchy or swollen breasts
- Changes in the appearance of the breasts
- Nipple discharge
- Vaginal discharge or bleeding
- Abdominal pain
- Pain during intercourse
- Difficulty urinating
- Bloating or a feeling of fullness
Specific cancer symptoms
The following are symptoms typically associated with certain cancer types:
Breast: Common symptoms of breast cancer may include physical changes in one or both breasts—such as swelling, redness, flaky skin, nipple discharge, a lump or growth, pain, swelling or tenderness under the arm.
Colorectal: Common symptoms of colorectal cancer include constipation and/or diarrhea, blood stool or bleeding from the rectum, cramps or abdominal pain, a bloated or full feeling, and thin, ribbon-like stool. other common gastrointestinal cancer symptoms include gas pain, changes in bowel/bladder habits, anemia and/or jaundice.
Prostate: Common symptoms of prostate cancer include difficulty urinating, burning or pain during urination, incontinence, blood in the semen or urine, difficulty getting an erection, and painful ejaculation.
Gynecologic: Common gynecologic cancer symptoms include abnormal vaginal bleeding (after menopause, between periods, following sexual intercourse), pain during intercourse, pelvic/back pain, pain on urination, and/or watery, white or pinkish vaginal discharge.
Head and neck: Common symptoms of head and neck cancers include persistent pain, difficulty swallowing, voice changes, mouth sores, dry mouth, changes in appearance, and/or taste changes.
Hematologic: Common hematologic cancer symptoms include flu-like symptoms, fever, chills, joint/bone pain, anemia, night sweats, lymph node swelling, itching, persistent cough, shortness of breath, abdominal discomfort, headaches, easy bruising or bleeding, and/or frequent infections.
Skin: Common skin cancer symptoms include a change in a mole’s size, shape and color in the form of asymmetry, border or color irregularities or diameter (larger than 1/4 inch), itchiness, pain and/or oozing around the affected area.
Lung: Common symptoms of lung cancer include a persistent cough, pain in the chest area, shortness of breath, hoarseness, wheezing, coughing up blood, blood in phlegm or mucus, neck or facial swelling, and/or headaches.
Metastatic cancer symptoms
If you have been diagnosed with cancer, cancer cells may spread to other parts of the body. This process is called metastasis, and it may occur before your initial diagnosis or during or after treatment.
Many cancers, including melanoma, breast, lung, prostate, colorectal and other common cancers, have a tendency to metastasize in certain cases. The most common locations for metastatic cancer to spread are the liver, lungs, bone and brain. When cancer spreads to a new location, it is still named for the location of the primary tumor. For instance, breast cancer that has spread to the brain is called metastatic breast cancer to the brain.
How do I know if my cancer has spread?
Symptoms of metastatic cancer may depend on where in the body the cancer has spread. For instance:
- If the cancer has spread to the bone, symptoms may include joint pain or fractures.
- If the cancer has spread to the brain, symptoms may include headaches, speech difficulties, blurred vision or dizziness.
- If the cancer has spread to the liver, symptoms may include jaundice, and bloating or swelling in the stomach.
- If the cancer has spread to the lungs, symptoms may include shortness of breath or a persistent cough.
An accurate diagnosis is critical to determining whether your cancer has spread and to developing a personalized treatment plan designed to meet your needs.
It’s important to consult with a medical professional if you are experiencing symptoms of cancer. A doctor will conduct a medical evaluation, including diagnostic tests to first confirm the presence of disease and then, if relevant, to identify the correct tumor type, location, extent and stage. An accurate cancer diagnosis helps doctors determine an appropriate treatment approach.