Showing posts from June, 2017


Impetigo  is a common and highly contagious skin infection that mainly affects infants and children. Impetigo usually appears as red sores on the face, especially around a child's nose and mouth, and on hands and feet. The sores burst and develop honey-colored crusts. Causes-Impetigo is most often caused by staphylococcus aureus. Non –bullous impetigo can also be caused by group A beta-haemolytic streptococcus, Streptococcus pyogenes. The  bacteria that cause impetigo when you come into contact with the sores of someone who's infected or with items they've touched — such as clothing, bed linen, towels and even toys. Symptoms-Classic signs and symptoms of impetigo involve red sores that quickly rupture, ooze for a few days and then form a yellowish-brown crust. The sores usually occur around the nose and mouth but can be spread to other areas of the body by fingers, clothing and towels. Itching and soreness are generally mild. A less common form of the disorder, called bullous…


Melasma or Chloasma is a common skin condition of adults in which light to dark brown or grayish pigmentation develops, mainly on face. The name comes from melas, the Greek word for black.Although it can affect both genders and any race, it is more common in women and people with darker skin- types who live in sunny climates. Melasma usually becomes more noticeable in the summer and improves during the winter months. It is not an infection, it is not contagious and it is not due to an allergy. Also, it is not cancerous and will not change into skin color. Causes-The exact cause is not known, but several factors contribute. These include pregnancy, hormonal drugs such as contraceptive pill, and very occasionally medical conditions affecting hormonal levels.Some cosmetics , especially those containing perfume can bring on melasma.It can also be caused by stress.Sunshine and the use of sun –beds usually worsen any tendency to melasma. Melasma can run in families, suggesting an inherited t…


Colon cancer is cancer of the large intestine (colon), the lower part of your digestive system. Rectal cancer is cancer of the last several inches of the colon. Together, they're often referred to as colorectal cancers. Most cases of colon cancer begin as small, noncancerous (benign) clumps of cells called adenomatous polyps. Over time some of these polyps become colon cancers. Polyps may be small and produce few, if any, symptoms. For this reason, doctors recommend regular screening tests to help prevent colon cancer by identifying and removing polyps before they become colon cancer Causes--In most cases, it's not clear what causes colon cancer. Doctors know that colon cancer occurs when healthy cells in the colon develop errors in their DNA. Healthy cells grow and divide in an orderly way to keep your body functioning normally. But when a cell's DNA is damaged and becomes cancerous, cells continue to divide — even when new cells aren't needed. As the cells accumulate, th…


Pancreatic cancer begins in the tissues of the pancreas — an organ in  abdomen that lies horizontally behind the lower part of the stomach. The  pancreas releases enzymes that aid digestion and hormones that help manage your blood sugar. Pancreatic cancer typically spreads rapidly to nearby organs. It is seldom detected in its early stages. But for people with pancreatic cysts or a family history of pancreatic cancer, some screening steps might help detect a problem early. One sign of pancreatic cancer is diabetes, especially when it occurs with weight loss, jaundice or pain in the upper abdomen that spreads to the back. Causes- It's not clear what causes pancreatic cancer in most cases. Doctors have identified factors, such as smoking, that increase your risk of developing the disease. Pancreatic cancer occurs when cells in your pancreas develop mutations in their DNA. These mutations cause cells to grow uncontrollably and to continue living after normal cells would die. These accum…


Dermatofibromas are small, noncancerous ( benign ) skin growths that can develop anywhere on the body but most often appear on the legs, upper arms or upper back. They may occur at any age , but are seen more in adults . particularly females.They are rare in children.They can be pink, gray, red or brown and may change colur over the years.They are firm and often feel like a stone under the skin. When pinched from the sides , the top of the growth may dimple inward. Dermatofifromas are usually painless , but some people experience tenderness or itching. Most often a single nodule develops , but some people can develop many dermatofibromas. They rarely grow larger than a half –inch in diameter. They do not change in size.The cause of dermatofibromas is unknown. Occasionally dermatofibromas found in large numbers in grouped or linear clusters are seen in association with immune disturbances, such as leukemia, HIV, and lupus.

Symptoms Dermatofibromas usually develop slowly . These small, hard…