As the bone or joint is breaking down, it will manifest as sharp pains that are often described as stabbing, shooting, tearing or piercing. If you have AVN in your hip, this pain will be more focused in the groin, thigh and buttocks.  It is easy to detect the symptoms of having AVN as it has only one: pain. Unfortunately, AVN is painless at first, so if you experience pain, it means that AVN is getting worse. Pain is only felt in the area where AVN is present. The most common areas affected are joints in the hip, shoulder, knee, hand and foot, with the hip being most common of all. And as the condition progresses or gets worse, pain may occur even if you are lying down or resting. With pressure on the bone or joint, you may also experience stiffness and muscle spasms. Severe pain is described as such when it interferes or limits your joint function or activity. This, unfortunately, means this joint is already collapsing or breaking down. The progression of AVN may take months to a year. The pain may intensify from mild to severe if it is left untreated. There is no way to determine how often the pain will occur. The only thing you can expect is more pain more often if you continue to do things involving the damaged area. Stiffness and muscle spasms, too, will likely occur more often as the muscles from the damaged area lose support from the bones. The veins in the muscles, for the record, are highly affected as well because of decreased blood flow. AVN can happen to anyone, but it is most common in men between the ages of 30 and 60. Recognizing how these factors come into play in your life can help you determine the likelihood of AVN affecting you. Here are the common risk factors that can lead to this condition:   Alcohol drinking. Too much alcohol in the body can develop fat in the passage way of blood. This fat interrupts or blocks blood flow, including in the bones, which is the number one cause of avascular necrosis.   Corticosteroid use. Long-term use of this drug can increase the risk of having avascular necrosis. It is said that steroids interfere with the body’s ability to break down fats which blocks or narrows the passage way of blood in the bones causing blocked blood flow in the bones.  Other medical conditions. There are medical conditions that increase the risk of having AVN. Usually these medical conditions have indirect factors, but it is again associated with the use of corticosteroids. These medical conditions are HIV, lupus, diabetes, sickle cell anemia, Gaucher's disease, blood clots and artery damage.  Medical procedures. There are medical procedures that can contribute to have the risk of having AVN. Radiation for cancer patients, Dialysis and Organ transplant specifically Kidney transplant are examples of this procedures. These medical procedures involve use of Corticosteroids in the onset of the procedures. Remember, Corticosteroid use is a major risk factor of having AVN. Pain occurs at rest if the condition is left without management, causing more and more bone destruction. Thus, take action as soon as possible to prevent the progression of this disease. Even if AVN isn't the culprit, it's still wise to talk to your doctor. Arthritis and osteoporosis, to name two similar, common examples, are also conditions that deserve treatment.  Often mild symptoms – pain that is simply an achy discomfort – are ignored and simply dealt with. Unfortunately, AVN isn't something that will go away on its own and requires treatment as soon as possible. Stiffness and restriction of joint movement (if there is a joint affected) happen due to a lack of nutrition to parts of the joint surface, which results in osteoarthritis. What starts out as AVN can progress to more complicated issues – yet another reason to consult your doctor. Avascular necrosis (or AVN) is a disease involving the loss of blood supply in the bones that causes death of bone tissues. This leads to breaks in the bone and if left untreated, bones will collapse. AVN is also known as osteonecrosis, aseptic necrosis and ischemic bone necrosis. X-rays can help but usually show changes only in the late stages. Bone scan and Magnetic Resonance Imaging (MRI) are also procedures that help to diagnose AVN.
++++++++++
One-sentence summary -- Know that stabbing, shooting pain is the only major symptom. Know you'll feel more pain if you put weight or pressure on the bone. Know that the pain will only get worse if left untreated. Consider factors that increase the risk of AVN. Talk to your doctor as soon as you expect you may have AVN. Know what avascular necrosis is and how it's diagnosed.


If you find partway through applying bleach to your hair that you don’t have enough to cover your entire head, it’s not the end of the world.  If you run out of the mixture but you still have all the ingredients you need, quickly mix this together and then continue applying the bleach to your hair. It shouldn't take more than a few minutes for you to make the mixture. If you need to go buy more ingredients, complete the bleaching process for the hair that you’ve covered in bleach (allowing it to sit on your hair until it’s blonde or until a maximum of 50 minutes have passed — whichever comes first). Then at your earliest opportunity, buy more materials and apply the bleach to your remaining unbleached hair. Ideally you’ve worn old clothes and protected them with a towel. If for some reason bleach gets on something you care about, you can try to remove it using the following method:  Apply a clear alcohol such as gin or vodka to a cotton wool ball. Rub the stain and the area around it with the ball; this should move some of the garment’s original color over to the bleached area. Keep rubbing until the color has covered the bleached area. Rinse well in cold water. If this doesn’t work, you might consider bleaching the entire garment and then dyeing it with a fabric dye in a color of your choosing. If you bleach your hair and after 50 minutes the color is nowhere close to blonde, don't panic. This is a common occurrence for people with darker and/or stubborn-to-dye hair. It may take you a few attempts to get your hair the color you want it.  If you need to bleach your hair a few times to get it blonde, be sure to give yourself at least two weeks in between bleachings. After each bleaching, pay close attention to the quality of your hair. If it begins to feel very damaged, you’ll need to wait longer before you try again. Your hair should feel fairly healthy before you apply more bleach to it, otherwise you’ll risk it breaking off or falling out. After a few root touch-ups you may find that your hair has developed bands of different shades of yellow.  You can address the darker bands by applying a small amount of bleach to them and letting it sit for several minutes until the strip of hair is closer in color to the rest of your hair. These bands will generally become much less noticeable once you’ve toned your hair.
++++++++++
One-sentence summary --
Don’t panic if you run out of bleach before you've covered all your hair. Remove bleach stains from your clothes. Be patient. Remove darker-colored bands from your hair.