The reason for the bumps on the back of the head can be trauma, cysts, fatty growths, inflamed hair follicles, and bone spurs. In some cases, the tumor, the portal writes MedikForum.ru.
Injuries to the head. They are the most common cause of bumps on the back of the head. A blow to the head can cause a hematoma of the scalp, in which accumulation of blood under the skin to form a semi-hard bump.
Minor head injury can be treated at home with rest, over-the-counter pain relievers and ice packs. However, more serious injuries can cause a concussion. A severe concussion can lead to dangerous complications if a person does not receive proper treatment.
The symptoms of a concussion may include:
- nausea and vomiting,
- problems with walking or balance,
- severe headache,
- slurred speech,
- problems with vision.
Polyarnye cysts. They are a type of cyst of skin that usually develop on the head or on the neck. These cysts represent a smooth, dense clumps, which contain the accumulation of keratin, the protein that the body uses to create cells of hair and nails. Polyarnye cysts usually grow slowly and vary in size from 0.5 to 5 centimeters in diameter. More common in women than in men. As a rule, harmless.
Lipoma. A lipoma is an accumulation of fat under the skin in the form of fairly soft tubercle. Lipomas can occur anywhere on the body including the back of the head and neck, and can vary in size, but are usually not painful. Doctors do not fully understand what causes lipomas, but most often they occur in people aged 40 to 60 years, usually harmless and do not require treatment. =
Bone spur (an exostosis). Is bone spurs that can develop around the joint. Bone spurs often occur in the neck and the back of the head, but also can form on any bone in the body.
Bone spur felt as a hard, immobile lumps. Although they are not always sensitive, these growths can cause pain if they RUB or put pressure on bones, tissue or nerves.
Tumors of the skull base. In rare cases, lump on the neck can be a bone tumor. One of the most common types of cancer of the skull chordoma is a tumour growing from the bones at the base of the skull.