Breast cancer is a major killer of women’s health. Talking about breast cancer many people feel panic and worry that they will be attacked too, what are the symptoms? As a woman, do you really know anything about breast cancer? What are the symptoms of breast cancer? There are 4 major symptoms of breast cancer. Lumps: It is the first symptom of breast cancer. Most of the lumps are located in the upper outer quadrant, followed by the upper inner and areolar areas of the nipple, and less frequently below. The size of the lump varies, with 2-3 cm being the most common size, mostly solitary and occasionally multiple. The lumps are mostly round or ovoid with poorly defined borders and are usually hard nodes with poor mobility. Pain: Most breast cancer patients lack pain symptoms. Because pain is less frequent, breast cancer is not easily detected early. Pain is often manifested as tingling, swelling or vague pain in the breast. Periodic pain may also occur if there is cystic hyperplasia of the breast around the cancer. Breast whorl changes: When the lump is large, there may be local elevation of the breast and enlargement of the breast. When the tumor involves the skin or pectoral muscle, the breast may become hard and shrink. The affected breast may be elevated when the patient is sitting upright. Breast skin changes: The breast tissue is surrounded by superficial fascia located under the skin and connected by Cooper’s ligament between the superficial and deep fascia. Since the superficial fascia is connected with the skin, when the Cooper’s ligament between the breast gland is shortened by the breast cancer, it will pull the skin and make the local skin sunken like a dimple, which is called “dimple sign”. The dimple sign can also be caused by direct adhesion of the tumor to the skin. The dimple sign can appear at the early stage of breast cancer and is more obvious when the affected arm moves up and down. From the above, when a woman finds a lump or pain in her breast or a change in the skin of her breast, she needs to go to the hospital for a timely checkup to see how her body is doing, because these are the symptoms of early breast cancer. The first step is to stand in front of a mirror with your upper body exposed and your arms hanging at your sides and observe the shape of your breasts. It is important to be familiar with the appearance of your normal breasts so that if there is any abnormality, you will be able to detect it. However, it is not abnormal for one breast to be slightly larger than the other. Next, raise your arms above your head and rotate your body to see if there are any changes in the shape of your breasts. Then, slowly rotate your body with your arms crossed to the right and left to see if there is any dimpling, redness, swelling, or skin damage to the breasts and nipples. Finally, place your hands on your hips and press down hard while rotating your body so that the contours of your breasts appear clear. Observe the shape of the breast for any abnormal changes. If you find any abnormal changes, you need to compare it with the other side to see if both breasts are symmetrical, and if they are not, you should be alert and seek medical attention. Step 2: Standing or sitting examination First, raise your left hand behind your head and then use your right hand to examine the left breast. The correct way to check: middle three fingers together, starting from 12 o’clock above the breast, use your fingers to massage the skin in a clockwise direction for a circular check. After each inspection circle back to 12 o’clock, then move down 2 cm to do the second circle, and then do the third circle until the entire breast and even the nipple is inspected. During the examination, the force should be even, and the strength should be such that the fingers can touch the ribs, and the fingers should not be detached from the skin. After examining the left breast, raise the right hand behind the head and examine the right breast with the left hand in the same way as above. After examining the whole breast, use your index finger, middle finger and thumb to gently lift the nipple and squeeze it to see if there is any discharge, if there is, you should go to the hospital for further examination. Step 3: Lie flat on your back and put a small pillow under your shoulder. Since the breast sags in sitting or standing position, especially in fat women, it is easy to miss the lump in the lower part of the breast, so it is also very important to check in the lying position. The examination technique is the same as the standing examination.