The human foot is a biological masterpiece. Its strong, flexible and functional design enables it to do its job well and without complaint—if you take care of it and don’t take it for granted.

The foot can be compared to a finely tuned race car or a space shuttle — vehicles whose function dictates their design and structure. And like them, the human foot is complex, containing within its relatively small size 26 bones (the two feet contain a quarter of all the bones in the body), 33 joints, and a network of more than 100 tendons, muscles, and ligaments, to say nothing of blood vessels and nerves.

Foot ailments are among the most common of our health problems. Although some can be traced to heredity, many stem from the cumulative impact of a lifetime of abuse and neglect. Studies show that most Americans experience foot problems of a greater or lesser degree of seriousness at some time in their lives; nowhere near that many seek medical treatment, apparently because they mistakenly believe that discomfort and pain are normal and expectable.

There are a number of systemic diseases that are sometimes first detected in the feet, such as diabetes, circulatory disorders, anemia, and kidney problems. Arthritis, including gout, often attacks foot joints first.

Your feet, like other specialized structures, require specialized care. A doctor of podiatric medicine can make an important contribution to your total health, whether it is regular preventive care or surgery to correct a deformity.

In order to keep your feet healthy, you should be familiar with the most common ills that affect them. Remember, though, that self-treatment can often turn a minor problem into a major one and is generally not advisable. You should see a podiatric physician when any of the following conditions occur or persist.

Bunions are misaligned big toe joints which can become swollen and tender. The deformity causes the first joint of the big toe to slant outward, and the big toe to angle toward the other toes. Bunions tend to run in families, but the tendency can be aggravated by shoes that are too narrow in the forefoot and toe. There are conservative and preventive steps that can minimize the discomfort of a bunion, but surgery is frequently recommended to correct the problem.

Heel spurs are growths of bone on the underside of the heel bone. They can occur without pain; pain may result when inflammation develops at the point where the spur forms. Both heel pain and heel spurs are often associated with plantar fasciitis, an inflammation of the long band of connective tissue running from the heel to the ball of the foot. Treatments may range from exercise and custom-made orthotics to anti-inflammatory medication or cortisone injections.

Ingrown nails are nails whose corners or sides dig painfully into the skin, often causing infection. They are frequently caused by improper nail trimming but also by shoe pressure, injury, fungus infection, heredity, and poor foot structure. Toenails should be trimmed straight across, slightly longer than the end of the toe, with toenail clippers. If the ingrown portion of the nail is painful or infected, your podiatric physician may remove the affected portion; if the condition reoccurs frequently, your podiatrist may permanently remove the nail.