Chondromas | Symptoms & Causes

What causes chondromas and who is affected by them?

Chondromas account for 25 percent of all benign bone tumors. The exact cause is unknown.

Enchondromas are the most common type of bone tumor found in the hand. Boys and girls are equally affected. They can occur at any age but usually enchondromas are not discovered until people are in their 30s or 40s.

Periosteal chondromas are extremely rare. They usually appear earlier, which may be because they produce symptoms, leading to earlier detection.

What are the symptoms of chondromas?


  • usually no symptoms
  • pain
  • fracture
  • tendinitis (usually in the upper arm)
  • painless swelling of a digit

Periosteal chondromas

  • dull, achy pain
  • swelling
  • a mass that can be felt
  • sometimes no symptoms