What are the hard bumps on the skin?

In daily life, pimples on the skin are not unfamiliar to many people. There are many reasons for pimples on the skin. Generally, they may be caused by allergies or mosquito bites. Protruding and hard pimples on the skin may be a symptom caused by urticaria or skin diseases. You should pay more attention to local care and try not to eat spicy food.

What causes hard bumps on the skin?

What causes hard pimples on the body?

1. Foods such as fish, shrimp, eggs, and milk are the most common, followed by meat and certain plant foods, such as strawberries, cocoa, and tomatoes. In addition, spoiled food decomposes into polypeptides, and alkaline polypeptides are histamine releasers. Protein foods are absorbed in the form of peptones or polypeptides before being completely digested, which can cause urticaria. This is more common in children and may also be due to the different permeability of the digestive tract mucosa in children and adults. In addition, coloring, flavoring, preservatives, and natural or synthetic substances added to food can also cause urticaria.

2. Drugs can be divided into two categories. One category is drugs that can form antigens, such as penicillin, serum, vaccines, sulfonamides, furazolidone, etc., and the other category is histamine releasers, such as aspirin, morphine, codeine, pethidine, polymyxin, vitamin B, quinine, hydralazine, etc.

3. Infection Various infectious factors can cause this disease. The most common ones are viruses that cause upper respiratory tract infections and Staphylococcus aureus, followed by hepatitis, infectious mononucleosis and coxsackievirus; parasitic infections such as ascariasis, hookworms, schistosomiasis, filariasis, amoeba and malarial parasites; bacterial infections such as acute tonsillitis, alveolar abscess, sinusitis, impetigo, sepsis, etc.

In life, we often encounter the phenomenon of pimples suddenly growing on the skin. Some people may think that this is nothing and don’t care about it. In fact, this is not the case. It is very likely that you have the skin disease urticaria, and the harm caused by this disease is very great. It is recommended to find out the cause of the disease and then seek treatment as soon as possible.

Subcutaneous lipoma is a benign tumor of adipose tissue. It is composed of mature adipose tissue and can occur in any part of the body where there is fat. Lipoma has a thin fibrous endothelium with many fibrous cords inside, forming many compartments vertically and horizontally. It is most commonly found in the subcutaneous tissue of the neck, shoulders, back, buttocks, breasts and limbs, face, scalp, scrotum and labia, followed by the retroperitoneum and gastrointestinal wall. Very rarely, it may appear in areas where there was originally no fat tissue. If the tumor contains a larger proportion of fibrous tissue, it is called a fibrolipoma.

Subcutaneous lipoma is a very common skin lesion formed by the accumulation of normal fat cells. It accounts for about 80% of benign soft tissue tumors. It often occurs under the skin and can also occur in deep tissues such as internal organs. Mature adipocytes are arranged in groups, and most are surrounded by a fibrous outer membrane. However, sometimes there are scattered patches of irregularly marginated fat tissue infiltrating the muscle tissue. Lipomas are commonly found in the subcutaneous fat layer of the head, neck, shoulders and back. It can be multiple and can occur at any age, but is most often found between the ages of 40 and 60. The lesions are usually slow growing, round, soft, movable, and painless to palpation.

Subcutaneous lipomas generally do not require treatment, but if they are large, interfere with other body functions, and cause subjective symptoms, they can be surgically removed. During the operation, the tumor lobules extending into the surrounding tissues should be completely eradicated to avoid recurrence.