Fractures of the nose or the base of the skull can cause bleeding and should be regarded seriously when the bleeding follows a head injury Rarely, tumors (both malignant and nonmalignant) have to be considered, particularly in the older patient or in smokers

First, help the person stay calm, especially a young child. A person who is agitated may bleed more than someone who’s been reassured and supported.

Obviously, when the patient is lying down, even anterior (front of nasal cavity) nosebleeds may seem to flow to the back of the nasal cavity, especially if the patient is coughing or blowing his nose. It is important to try to make the distinction since posterior (back of nasal cavity) nosebleeds are often more severe and almost always require a physician's care.

Cy, JUDGE DREDD, Madtoscratch, Lianne, lutece, SueB, akesingland, riaY, bryndavell, Groovygirl, david_8, SJ, Terrimayormaynot, jjoblogs1, anglichanin, Tom_B, bubble, TrishR, squoink, GATTACA, willy, Roger, margurita_simpson, snowy, beacon, LyndsayA, stripe77, Snow Surfer, lighthearted The material has been extracted from Psoriasis at your fingertips by Dr Tim Mitchell & Rebecca Penzer (Class Publishing).

Almost all teenagers get acne at one time or another. You haven't done anything to cause your acne. It's not your fault if you have it. Pimples are caused when oil ducts in the skin get plugged up and then burst, causing redness and swelling. Although there are many myths about acne, the following are the three main factors that cause it. When you begin puberty, certain hormones, called androgens, increase in both males and females.

Several factors contribute to the development of acne. The primary problem is that the abnormal flaking of cells inside the hair follicle leads to the formation of a plug. The plug can enlarge and even rupture the hair follicle. A ruptured hair follicle spills its contents of oil and debris into the skin where it leads to swelling and causes redness (inflammation).

Parts may distort as they solidify and cool in the die, or during ejection from the die. These problems are solvable but usually require discussions between the part designer, the tool designer and the die-casting engineer since they involve increasing draft angles etc. However, part distortion is quite often caused by mishandling during press trimming, polishing etc. or when the parts are clamped in jigs for machining, plating or painting.

Patients with long QT syndrome develop a very fast heart rhythm disturbance known as "Torsade de pointes". This is a form of ventricular tachycardia. This rhythm is too fast for the heart to beat effectively, so the blood flow to the brain falls precipitously causing the sudden loss of consciousness. In most instances, there is no warning prior to syncope.

Melanoma is a malignancy of melanocytes, special cells in the skin which synthesize skin pigment. It is the most rapidly increasing form of cancer in the US. Although all causes of melanoma are not known with certainty, epidemiologic studies suggest that brief, intense exposure to ultraviolet radiation contributes to the development of melanoma.

allergic reaction occurs when your immune system reacts to a foreign substance from the outside world. These foreign substances, normally small proteins, can come from dust mite feces, pollens, molds, and many other natural and man-made objects.

Shorter days of winter and lack of light are considered one cause of seasonal depression, especially for people who move to extreme northern climates, where winter days are very short or seasonal differences in the amount of daylight are extreme.1, 2 However, researchers are studying other possible causes, including disturbances in the body's natural biological clock (circadian rhythms) or problems with the regulation of a brain chemical (neurotransmitter) called serotonin.