One should also listen to people close to you, such as your close friends or wife. Sometimes others notice things about us that we're unaware of or don't want to admit.

Below are some symptoms that are commonly overlooked and could be signs of cancer

1. Inexplicable Weight Loss
If you observe sharp decline in your body weight, even when there are no major changes to your diet or exercise regime, it's essential to find out why. Most of the times, unexplained weight loss
could be an early sign of colon and other digestive cancers.

2. Shortness of Breath
Often, lung cancer patients, when they look back remember noticing their inability to catch their breath. They couldn’t even walk short distances without wheezing. Chest pain shortness of breath, spitting blood can be signs of testicular cancer that spreads to the lungs.

3. Chronic Stomach Problems
Unexplained stomach aches, or feeling completely full even after a small serving of food are common early symptom of stomach cancer. Liver cancer patients have been known to frequently visit their doctors complaining of upset stomachs or stomach pains. Get an ultrasound done after consulting your doctor if you have a stomach ache that doesn’t go away.

4. Difficulty in Swallowing
Men identified with esophageal cancer, looking back remember a feeling of pressure and soreness when swallowing that just didn't go away. This is a sign of tightening of the esophagus which could mean the existence of a tumor. Sometimes it is one of the first signs of lung cancer too.

5. Frequent Infections
Catching infections easily or having fever often with body aches can indicate leukemia, a cancer of the blood cells. Here, the bone marrow produces abnormal white blood cells which drain the body's infection-fighting capabilities. See your doctor if you show these symptoms for over an extended period of time.

6. Swelling of Facial Features
Some patients later diagnosed with lung cancer reported noticing swelling, puffiness, or redness in the face. The explanation behind this is that lung tumors obstruct the blood vessels in the chest, thus checking blood from running freely from the head and face. Don’t ignore any puffiness on your face if it doesn’t go away.

7. Persistent heartburn
If you have frequent incidents of heartburn or a constant feeling of pain in the chest after eating anything, see your doctor and get screened for esophageal cancer. When the stomach acid ascends into the esophagus, it causes heartburn and a sour taste in the throat. It can set off a condition called Barrett's esophagus, which can lead to esophageal cancer.

Going through this brief guide on cancer in men will help you to learn about the diseases at early stages.

For assessing your risk factors for certain kinds of cancer, it is very important to study your family records of cancer properly.

Let your doctor know and together you can keep these cancers at bay.