Pallor, a common sign

 How pallor occurs?

Pallor occurs when there is a decrease in blood flow or a reduction in the concentration of red blood cells in the small blood vessels located near the skin's surface. This can happen for several reasons:

• Anemia: A common cause of pallor is anemia, where there's a lower amount of hemoglobin in the blood, leading to reduced oxygen-carrying capacity. Hemoglobin gives blood its red color, so a decrease in its concentration can result in paleness.

• Vasoconstriction: In response to certain diseases, the body might constrict blood vessels to redirect blood flow to vital organs, reducing blood supply to the skin. This can cause the skin to appear paler.

• Shock: Severe illnesses or conditions like shock can cause a drop in blood pressure and reduce blood flow to the skin, leading to pallor.

• Reduced Oxygen Levels: Conditions that affect the lungs or interfere with the transport of oxygen from the lungs to the blood can result in lower oxygen levels in the body, contributing to paleness.

• Certain Medications: Some medications can affect blood flow and vessel constriction, leading to paleness as a side effect.

• Chronic Diseases: Chronic diseases that impact blood production, circulation, or oxygenation can lead to persistent pallor.

-Dr Jayaram Krishna M

CAUSES OF LOW BIRTH WEIGHT IN NEWBORNS

 

• Premature birth: Babies born before 37 weeks of gestation are considered premature. Prematurity is a leading cause of low birth weight because the fetus hasn't had enough time to grow and develop fully in the womb.

• Intrauterine growth restriction (IUGR): This condition occurs when a baby fails to reach its expected growth potential inside the womb. Various factors can contribute to IUGR, including poor nutrition, placental problems, maternal health issues (such as high blood pressure or preeclampsia), smoking, drug use, or certain infections.

• Multiple pregnancies: Twins, triplets, or other multiples tend to have lower birth weights compared to single babies. This is because the mother's uterus has to accommodate multiple fetuses, which may result in limited space and nutrient supply for each individual baby.

• Maternal factors: Certain maternal factors can increase the likelihood of a baby having a low birth weight. These include poor maternal nutrition, inadequate weight gain during pregnancy, smoking, drug use, alcohol consumption, and certain medical conditions such as high blood pressure or diabetes.

• Maternal age: Teenage mothers and women over the age of 35 have a slightly higher risk of giving birth to low birth weight babies.

• Placental abnormalities: The placenta plays a vital role in supplying nutrients and oxygen to the developing fetus. If the placenta is not functioning properly due to conditions like placental insufficiency or placental abruption, it can affect the baby's growth and result in a low birth weight.