The fleshy bumps found under the armpit when pregnant may be the result of the following: 1. It is possible that there is a sudden weight gain in pregnancy and an increase in body fat. If there are fleshy bumps under the armpit, excluding other swellings or lymph nodes, they are often formed by local fat accumulation. If you’re not sure what you’re looking for, you’ll be able to get rid of it. 2. It could be a superficial subcutaneous mass, commonly sebaceous cysts, lipomas, fibroids, etc. These are benign masses. These are benign masses that can be identified by going to the hospital for local ultrasound basically. The best way to eliminate it is to cut the skin after local anesthesia and remove the swelling after complete separation and then suture the wound. 3. It is possible that the axillary lymph nodes are enlarged, commonly caused by swelling in the breast or chest cavity, especially malignant tumors. You must go to the hospital for a detailed examination and a clear diagnosis.4. It may be a parametrium.