Neuromas are frequent after trauma and surgery, including amputation and can be identified by high-resolution ultrasound. The role of neuromas as the cause of neuropathic pain is uncertain. In this observational cohort study, the investigators wish to explore if the prevalence of neuromas are higher in patients with pain after peripheral nerve injury and amputation, than in patients with the same conditions but without pain.

Inclusion Criteria:

• Subjects with peripheral nerve injury 3 months prior to participation
• Subjects with amputation 3 months or more prior to participation

Exclusion Criteria:

• Severe somatic or psychiatric diseases
• Other peripheral neuropathy
• Lack of ability to cooperate to the clinical examination

Patients with peripheral nerve injury after surgery or trauma. Amputees.