What is the cause of pain under the left fluid?

From a clinical perspective, if pain occurs in the left armpit, it is likely caused by subcutaneous cysts, furuncle, folliculitis, swollen axillary lymph nodes, etc. In order to receive correct treatment, a diagnosis must be made first. Generally speaking, the probability of subcutaneous cysts is relatively high, and the symptoms of subcutaneous cysts include epidermal cysts, dermoid cysts, cysts, etc. When facing these symptoms, you must first adjust your mentality and not put too much pressure on yourself.

1. What is the cause of pain under the left fluid?

Pain in the left armpit is usually caused by subcutaneous cysts, furuncle, folliculitis, and enlarged axillary lymph nodes. You can go to the surgical department for an examination and then observe and treat after a clear diagnosis.

2. What are the symptoms of subcutaneous cysts?

(1) Epidermal cyst: It is a cyst containing keratin in the dermis. It is caused by the implantation of the epidermis into the subcutaneous tissue due to trauma. The cyst wall is an epithelial structure, but the basal cell layer is the outer layer of the cyst wall. The stratum corneum is the inner layer of the cyst wall and is filled with keratin in the cavity.

This disease often occurs on the scalp, neck, buttocks and back. Single or multiple, with diameters ranging from several millimeters to several centimeters, slowly enlarging, soft or hard in texture with a cystic feel, a movable base, and often adhesion to the skin. There are no small openings like sebaceous cysts on the skin surface, and there is no pain. Only when it occurs in the pressure-bearing area will there be compressive pain. It may be accompanied by secondary infection, and according to records, there is a possibility of malignant transformation.

(2) Dermoid cyst: It is usually a congenital lesion caused by the remnants of embryonic epithelium. It is a hamartoma composed of skin cells that have deviated from their original position. In addition to the epidermal cells of the cyst wall, it also contains sweat glands, hair follicles and sebaceous glands. The cavity contains desquamated epithelial cells, sebum and other porridge-like substances and hair.

Most of them are localized cystic tumors, which are discovered in childhood and adolescence. They grow slowly and are small in size. They are soft, round or hard cystic masses. It is located under the skin, has no adhesion to the skin, but is very tightly adhered to the basal tissue and is not easy to push. It is common around the eye sockets, root of the nose, occipital area and floor of the mouth, followed by the limbs. It can also occur on the chest and back. Long-term growth may lead to cancer.

(3) Psorphyria is caused by sebum stasis due to occlusion or stenosis of the sebaceous gland duct. The cavity wall is composed of epithelial cells without keratinization, and the outside of the capsule is fibrous connective tissue. It is filled with sebum, which gradually breaks down into a semi-fluid substance containing a large amount of cholesterol crystals.