Begin by looking at your breasts in the mirror with your shoulders straight and your arms on your hips.Check if Breasts are their usual size, shape, and color.
Now, raise your arms and look for the same changes.
While you're at the mirror, look for any signs of fluid coming out of one or both nipples (this could be a watery, milky, or yellow fluid or blood).
Next, feel your breasts while lying down, using your right hand to feel your left breast and then your left hand to feel your right breast. Use a firm, smooth touch with the first few finger pads of your hand, keeping the fingers flat and together. Use a circular motion, about the size of a quarter. Cover the entire breast from top to bottom, side to side — from your collarbone to the top of your abdomen, and from your armpit to your cleavage.
Finally, feel your breasts while you are standing or sitting. Cover your entire breast, using the same hand movements described in step 4.