Cancer symptoms vary completely depending on the type and location of the tumor. However, there is a set of general warning signs that should not be ignored.

Here are the most prominent early symptoms of cancer:

1. Unexplained weight loss: Sudden weight loss without changes in diet or exercise.

2. Severe fatigue: Persistent tiredness that does not improve with rest. It occurs as a result of cancer cells depleting the body's energy or secreting substances that alter the way it produces energy. Unlike normal tiredness, it severely affects the ability to perform daily tasks.

3. Appearance of a lump or swelling: A mass or thickened area that can be felt under the skin.

4. Skin changes: Appearance of lumps under the skin, changes in moles, or non-healing sores.

5. Persistent cough or hoarseness: A persistent cough or hoarseness lasting more than two to three weeks can be an important warning sign. These symptoms are often associated with lung or laryngeal cancer.

6. Changes in bowel or bladder habits: Persistent changes in bowel or bladder movements may be an early warning for various diseases, including cancer. Signs that require medical consultation include:

Chronic constipation or diarrhea, bloody or black stools, frequent urination or difficulty urinating, blood in urine, and a feeling of incomplete bladder emptying.

7. Unusual bleeding: Unusual bleeding is

an important warning sign that requires medical consultation.

It may have different implications depending on its location in the body.

8. Difficulty swallowing: Difficulty swallowing (dysphagia) is

an early warning sign for head, neck, and esophageal tumors.

It typically begins with difficulty swallowing solid foods, then gradually progresses to include soft foods and liquids. It may be accompanied by a feeling of food stuck in the throat or chest, pain, or unexplained weight loss.

9. Severe headache: Headaches associated with cancerous tumors (especially brain tumors) are

characterized as persistent, worsening over time, and most severe in the early morning. It intensifies with coughing, sneezing, or changing body position, and usually does not respond to conventional painkillers and coincides with neurological symptoms.

10. Unusual vaginal bleeding: Bleeding that is not part of your period may be a cause for concern due to fibroids or birth control pills. It then requires some tests such as an ultrasound to rule out the possibility of uterine or cervical cancer.