Hallux valgus, commonly known as a bunion, is a deformity where the big toe deviates towards the other toes, causing a bony prominence on the inner side of the foot. An osteotomy involves making precise cuts in the bones of the big toe to realign them into a more natural position. This procedure aims to relieve pain, correct the deformity, and restore normal foot mechanics. Various techniques, such as the Scarf or Chevron osteotomy, may be employed depending on the severity of the deformity.