M83.55: Other drug-induced osteomalacia in adults Pelvic region and thigh

You have osteomalacia.

Bones consist mainly of bone cells, certain proteins and various minerals. The minerals include calcium and phosphate, in particular. The bone tissue is constantly being broken down and built up again. This enables bones to adapt well to loading. There is usually a balance between the growth and breakdown of bone tissue.

With osteomalacia there are fewer minerals or more proteins than usual in the bone tissue. This can soften the bone tissue. Bones in your pelvis or thigh are softer than normal.

Various messenger substances in the body affect how much bone tissue is built up and broken down. Important in this are vitamin D and certain sex hormones, for example. There can be various reasons for osteomalacia. There may be too little vitamin D, calcium or phosphate in the body. It may also be that the vitamin D is not working as it normally does.

In your case, the osteomalacia has been caused by you taking medication for a long time. Certain medicines can cause the bones to become softer.

Osteomalacia can cause bones to be painful. The pain mainly occurs where the bones bear a lot of weight. This affects the spine, hips and legs, for example. Bones may also become deformed. The muscles may be weaker than normal or they may cramp up.