What to do if I have a small lump under my armpit. And it feels as though I have lumps in my breasts, too. Could this be breast cancer?

Always possible. small lumps in armpit are usually of no concern unless they are enlarging and increasing in number. Lumps in the breast are usually normal since by definition breast tissue is lumpy. A solitary firm lump always requires investigation. Either way a mammo and sono should be performed and any further treatment would proceed from there.

Related Questions

I found a small painless, hard lump in my breast / armpit area. No history of breast cancer in family. I'm not able to manipulat it. Mainly in breast.

Need to examine. If is not feasible to know what you are feeling. You may be feeling a rib rather than a mass in the breast. It would be prudent to see your doctor for an evaluation. For good health - Have a diet rich in fresh vegetables, fruits, whole grains, low fat milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form. Practice safe sex. Read more...

I have lumps in my armpits that don't seem to go away. I am only 19 and feel like breast cancer only happens to older people. What could it be?

You are correct. Breast cancer is quite rare in young women. If you are feeling something that has been there for an extended period of time then you should probably be examined by your personal physician. Read more...
See a doctor. I agree with dr. Dugan that beast cancer is a very unlikely cause for axillary "lumps, " especially at your age. Best to see a doctor for an examination. Could be skin gland issues. Ingrown hair irritation, lymph nodes, etc. Have it examined to be able to get better information. Read more...
Infection. Arm pit lump could be either a cyst, hydradenitis or lymph node. If it is a lymph node, it is least likely to be cancer in your age group. It is most likely secondary to an upper extremity wound or infection. Read more...

Can a breast cancer lump be in the armpit, or are they always on breasts?

Yes. As breast tissue normally extends up into the armpit, it is possible to develop a breast cancer there. Furthermore, some breast cancers may cause enlargement of the lymph nodes that are normally found in the armpit, which can manifest itself as a palpable lump in the armpit. Read more...
Armpit & breast. Breast cancer lumps can be in the armpit or lymph node. This is the 1st place a cancer will spread before going to other areas of the body. If cancer is detected early, it should only be in the breast. This is why breast self exam and mammograms are so important. Read more...
Can be. The tail of the breast extends all the way up to the armpit. Read more...
Yes. In some women, developmentally, some of the breast tissue is found in the armpit or axilla. This is called polymastia. Changes in the size are typically related to hormonal changes like pregnancy or breast feeding. Although quite rare, breast cancer can even devlop there. Read more...
Breast or armpit. Breast cancer can occur in the armpit for two reasons. One - the breast tissue can extend toward/into the armpit. Two - breast cancer can spread to the lymph nodes of the armpit. Read more...