A bunion is enlargement of bone or tissue that develops at the joint that connects your big toe to your foot. The bones, muscles, ligaments and tendons of your feet normally are well-balanced to distribute your body's weight while standing, walking and running. When the joint, called the metatarsophalangeal joint, or MTP joint, experiences abnormal, prolonged stress in terms of weight distribution or squeezing of the toes within the shoe, the result can be the deformity called a bunion. Generally, a bunion develops when, as a response to prolonged stress, your big toe begins bending toward your foot's smaller toes and puts pressure on your MTP joint, forcing it to bulge outward (the term "bunion" comes from the Latin word for "enlargement"). There is no "standard" bunion, however, but rather a complex range of joint, bone and tendon abnormalities that can cause variation in each bunion's make-up.
There is some debate about the main cause of foot bunion pain, but they tend to fall into 2 categories. Genetics. There is a definite genetic link, meaning that if someone in your family suffers from a hallux abducto valgus, there is a high chance that you will too, although this is not always the case. It may be due to an abnormal foot position such as flat feet, or a medical condition such as hypermobility (where your joints are overly flexible) or arthritis (e.g. rheumatoid arthritis or gout). Regularly wearing high heels with a pointed toe puts you at high risk for developing foot bunions. Ill-Fitting Footwear. Poorly fitting shoes are thought to be the other common cause of foot bunion pain. Frequent wear of tight fitting shoes or high heels places excessive pressure on the big toe pushing it into the classic hallux abducto valgus position.
The symptoms of a bunion include the following development of a firm bump on the outside edge of the foot, at the base of the big toe, redness, swelling, or pain at or near the MTP joint, corns or other irritations caused by the overlap of the first and second toes, restricted or painful motion of the big toe.
Before examining your foot, the doctor will ask you about the types of shoes you wear and how often you wear them. He or she also will ask if anyone else in your family has had bunions or if you have had any previous injury to the foot. In most cases, your doctor can diagnose a bunion just by examining your foot. During this exam, you will be asked to move your big toe up and down to see if you can move it as much as you should be able to. The doctor also will look for signs of redness and swelling and ask if the area is painful. Your doctor may want to order X-rays of the foot to check for other causes of pain, to determine whether there is significant arthritis and to see if the bones are aligned properly.
Non Surgical Treatment
In the early stages of the formation of a bunion, soaking feet in warm water can provide temporary relief. The best way to alleviate the pain associated with bunions is to wear properly fitting shoes. Shoes designed with a high, wide toe box (toe area) are recommended for people suffering from forefoot disorders, such as bunions. Shoes with rocker soles will unload pressure to the bunion area. Orthotics are also recommended for this condition to provide extra comfort, support, and protection. Other conservative treatments include using forefoot products designed to accommodate and relieve bunions such as bunion shields, bunion night splints, and bunion bandages. These conservative treatments can limit the progression of the bunion formation, relieve pain and provide a healthy environment for the foot.
Bunion surgery involves realigning the joint into a better position. The procedure is usually performed under a general anaesthetic so the patient is not awake during the operation. A bunion causes a prominent bone over the inside of the joint between the foot and the big toe known as the 1st metatarso-phalangeal joint. It gives the appearance of the big toe pointing in towards the others. Surgery is a last resort treatment option in severe cases where walking or wearing shoes is painful.