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Breast Glands
The mammary glands are descended from the corium  skin, which has been bulged inward and given a different function.
See also the epidermis and subcutis (the part of the breast) and the milk ducts.
Whether it is the left or right breast depends on biological dexterity.
Themes
1. Worrying about a loved one.
2. Having a conflict with the loved one, that is, "fighting" with someone.
3. Problems in the "nest." Concerns or conflicts within the family or group one lives with.
The conflicts are not sexual in nature.
CA phase
Increase of cells in mammary gland, breast cancer.
Biological utility
Increased production of breast milk to better care for someone.
Symptoms
Possible palpable thickening in breasts. No pain.
In prolonged or intense CA phase: swelling may become large.
PCL phase
Normalization of function. Degradation of cells by TB bacteria, if present, otherwise encapsulation of tumor.
Symptoms
Breast infection, breast cancer. Extreme fatigue, night sweats, pain, possible elevation. Large swelling in syndrome.
Because there is often also a self-esteem violation more at play ("I didn't take good care of my child or partner" or "my breast is no good"), there are often sequelae in the lymph nodes or bones near the breasts. These are seen as "metastases" and treated as such (if possible "preventively"), e.g., the "axillary toilet."
EC
Strong pains, chills and cold sweats. Discharge of inflammation via lymph and blood (normal), possible outward eruption of inflammation with foul-smelling pus. This is especially likely if after a puncture is performed: the way out is cleared.
Surgical removal of the breast is recommended if the person feels disfigured or dirty because of the process. The process itself is the trigger and it becomes a vicious cycle that the person often cannot get out of.
At the end of the process, calcium deposits may be left behind. These are considered the precursors of a malignant breast cancer and amputation is usually advised.