At 6 months of pregnancy, the fetus has grown to a length of 29-34 cm and a weight of about 650 grams. The body gradually becomes symmetrical. The deposition of subcutaneous fat has not progressed much, so I am still very thin, and my skin is yellow due to subcutaneous fat. From this point on, vernix begins to adhere to the surface of the skin. Sebum is a mixture of sebum secreted by sebaceous glands and exfoliated skin epithelium. Its purpose is to provide nutrition and protect the skin of the fetus before delivery, while also providing lubrication during delivery