The bone marrow aspiration is usually done first. The doctor makes a small incision, then inserts a hollow needle through the bone and into the bone marrow. Using a syringe attached to the needle, the doctor withdraws a sample of the liquid portion of the bone marrow. You may feel a brief sharp pain or stinging.

Histology of Dorsal Root Ganglion

Absence seizures involve brief, sudden lapses of consciousness. They're more common in children than adults. Someone having an absence seizure may look like he or she is staring into space for a few seconds. This type of seizure usually doesn't lead to physical injury. Absence seizures usually can be controlled with anti-seizure medications. Some children who have them also develop other seizures. Many children outgrow absence seizures in their teens.

Ectopic Pregnancy

This is a surgical video demonstrating the release and skin grafting of the middle and ring fingers. It demonstrates the marking, dissection, and repair of the fingers.

Testicular sperm aspiration (TESA) is a procedure performed for men who are having sperm retrieved for in vitro fertilization/intracytoplasmic sperm injection (IVF/ICSI). It is done with local anesthesia in the operating room or office and is coordinated with their female partner's egg retrieval.

HSV-1 causes "cold sores" on the mouth, and up to 80% of the population has this virus. However, HSV-1 may also be transmitted to the genitals through oral/genital sex and about 40% of genital herpes is caused by HSV-1. Up to 22% of sexually active adults have genital herpes caused by HSV-2.

The ureter can become obstructed due to conditions such as kidney stones, tumors, infection, or blood clots. When this happens, physicians can use image guidance to place stents or tubes in the ureter to restore the flow of urine to the bladder. A ureteral stent is a thin, flexible tube threaded into the ureter.

A peak flow meter is an inexpensive, portable, handheld device for those with asthma that is used to measure how well air moves out of your lungs. Measuring your peak flow using this meter is an important part of managing your asthma symptoms and preventing an asthma attack.

Removal of a Broken Intramedullary Nail and Exchange Nailing for Tibial Nonunion

Bartter syndrome is a rare inherited defect in the thick ascending limb of the loop of Henle. It is characterized by low potassium levels (hypokalemia), increased blood pH (alkalosis), and normal to low blood pressure. There are two types of Bartter syndrome: neonatal and classic

Genes are the building blocks of heredity. They are passed from parent to child. They hold DNA, the instructions for making proteins. Proteins do most of the work in cells. They move molecules from one place to another, build structures, break down toxins, and do many other maintenance jobs. Sometimes there is a mutation, a change in a gene or genes. The mutation changes the gene's instructions for making a protein, so the protein does not work properly or is missing entirely. This can cause a medical condition called a genetic disorder. You can inherit a gene mutation from one or both parents. A mutation can also happen during your lifetime.

In multiple sclerosis, the immune system attacks the protective sheath called myelin, that covers nerve fibers and causes communication problems between your brain and the rest of your body. Eventually, the disease can cause the nerves to deteriorate or become damaged.

This 3d medical animation features a dramatic operative room overview of a left leg below the knee surgical amputation following severe trauma to the ankle and foot.

Watch that video to learn everything about Hemorrhoids Repairing Surgery

As the liver becomes more severely damaged, more obvious and serious symptoms can develop, such as: yellowing of the skin and whites of the eyes (jaundice) swelling in the legs, ankles and feet, due to a build-up of fluid (oedema)

Emergency contraception is a method of birth control you can use if you had sex without using birth control or if your birth control method did not work correctly. You must use emergency contraception as soon as possible after unprotected sex. Emergency contraception pills are different from the abortion pill. If you are already pregnant, emergency contraception pills do not stop or harm your pregnancy. Emergency contraception has also been called the "morning-after pill," but you do not need to wait until the morning after unprotected sex to take it. Emergency contraception is not meant to be used for regular birth control. Talk to your doctor or nurse about regular birth control to help prevent pregnancy. Nearly half of all pregnancies in the United States are unplanned.1