Arthrosis, also known as osteoarthritis is caused by chronic wear of cartilage. Unlike arthritis pain, which is often nocturnal and appears more or less continuous, arthrosis pain is often felt during the day and emphasizes during joint movement efforts.
Most moles are harmless, but if they start to grow, itch or bleed, or change in any other way, seek medical advice. Some types of moles can be linked to melanoma, the most dangerous form of skin cancer, so mole awareness if important. If you have moles, check your skin every few months for any new moles or changes to existing ones.