A homocysteine blood test is done to: 1  Help identify vitamin B12 deficiency or folic acid deficiency. 2  Help identify a rare inherited disease (homocystinuria) that causes a deficiency of one of several enzymes needed to convert food to energy.  Help determine a cause for otherwise unexplained blood clots.
Category : Causes of Bed Sores. Common Causes of Bed Sores. Bedsores are damaged skin caused by a lack of proper blood flow to the skin because of pressure. The bedsore can occur in individuals at any age when bedridden, in a chair or wheelchair without the ability to reposition themselves.
Conditions that may cause a sore, blister, or lump include: 1  Genital herpes. 2  Genital herpes is a viral infection that causes skin blisters and sores in the vaginal area. 3  Genital warts. 4  Genital warts are a sexually transmitted infection (STI). 5  They are caused by various types of human papillomavirus (HPV).ther rashes in the vaginal area. Other conditions that may cause a rash in the vaginal area include: 1  Scabies, which is an itchy skin condition caused by tiny mites that burrow into the outer layers of the skin.