Scar-like marks that seem to appear out of nowhere without any injury or other apparent reason are most commonly stretch marks.
Striae (Stretch Marks): Causes, Symptoms, and Treatment
Causes of Scaly or Flaking Skin
Erythematous Plaques - Dermatology Advisor
Mottled skin: causes and treatments
Raised Skin Bumps: Pictures, Types, Causes, and Treatment
Skin Lesions: Pictures, Causes, Diagnosis, Treatment & More
Tinea Cruris: Causes, Symptoms, and Treatment - Skinsight
Stretch marks on thighs: Appearance, causes, and treatments
Ladies of reddit, I need help!! My inner thighs ALWAYS look like
Does Body Contouring Help Lose Weight?
Genital Rash: Causes and How It's Treated
Skin Disorders: Pictures, Causes, Symptoms, and Treatment
Hypertrichosis of the inner thighs due to topical testosterone
Skin Disorders: Pictures, Causes, Symptoms, and Treatment
15 Skin Conditions: Pictures, Symptoms, Treatment