Concussions may bleed internally or externally, and one cannot say the severity based on the look itself. Most people get scared when they see blood oozing out of the head and usually consider it to be a dangerous condition. However, when they see a swelling, they tend to panic lesser. But, an internal injury that causes a swelling can be far more dangerous than an external swelling that bleeds.

A concussion or its severity can only be gauged by looking at brain scans and then only the extent of damage can be determined. Also, the symptoms of concussions can last for several days after the injury. Based on these symptoms and their recurring nature, the concussions are graded into 5 levels. (See Reference 1)

Some of the signs of concussions are as follows:

The person may experience headaches and also blurry visions for several days after the injury. They may have problems in thinking correctly. On the psychological side, they may seem more irritable because of the confusion and they may sleep more than normal. If a person sleeps excessively after a concussion, it could be dangerous and that is why they have to be monitored closely. There is a possibility that they are becoming unconscious during sleep which may lead to coma. (See Reference 1)

After a concussion an individual may feel tired, and they may seem much more lethargic. They also experience nausea and vomiting sensation. This could be further accompanied with symptoms like sadness or insomnia. An individual may find it difficult to concentrate on mundane jobs soon after a concussion. They may become more sensitive to light and noise, and find it difficult to cope with any stress. They may also experience trouble with their sleep patterns. (See Reference 1)

Forgetfulness or short term memory loss is another kind of problem that arises after a concussion. The person may also feel nervous and out of sorts. He or she may experience numbness in their hands and fingers. They find it difficult to remember simple things. (See Reference 1)

However, if most of the symptoms start occurring soon after the injury, then it is probably a good idea to consult the doctor. If you have forgotten that you had an injury, it is still advisable to meet a doctor. A doctor will think of asking you if you have hurt your head in the recent past.

More Articles :

• Care For A Concussion
• Concussion And Brain Function
• Cumulative Effect Of Concussion
• Dangers Of Concussions In Football
• How Long Does A Concussion Last ?
• Signs Of A Concussion

1. CDC: What Are The Signs And Symptoms Of Concussion
http://www.cdc.gov/concussion/signs_symptoms.html