The Morphea in Adults and Children (MAC) cohort is the first registry for both children and adults with morphea (also known as localized scleroderma) in the country. The purpose of the registry is to learn more about morphea, specifically:

• How morphea behaves over time
• How frequently specific problems occur along with morphea (for example, arthritis)
• Whether morphea has an autoimmune background

Inclusion Criteria:

1. Patient must have a clinical diagnosis of morphea confirmed by the primary investigator and by histopathological examination.
2. Ages 0-90 years old
3. Children must weigh more than 20 lbs. in order to satisfy Children's Medical Center policy for the maximum amount of blood drawn in a 24 hour period.
4. Patient or legal guardian must be able to speak and read at a 6th grade reading level.
5. Both male and female patients will be eligible
6. All races and ethnic backgrounds will be included
7. Relationships to proband: All patients with morphea will be included. A patient's family history will be reviewed and if there is a family history of morphea or systemic sclerosis then we will give the study patient the investigator's contact information and ask the family member to call the study team to answer any questions and enroll them in the study if they choose to do so.
8. Ability to give informed consent: Patients must be able to give informed consent or they will give assent with parent or guardian consent as a minor to be a part of the morphea registry.

Exclusion Criteria:

- Patients who have been coded as morphea (701.0), but do not have morphea/localized scleroderma (examples: steroid atrophy, acquired keratoderma, keloids, nephrogenic fibrosing dermopathy, systemic sclerosis, lichen sclerosis)

Recruitment from clinic visits as well as from regional and national referrals.