What are the rulings concerning hair falling out during Hajj, the difference between the first and second dissolutions from ihram, the ruling on a female pilgrim wearing trousers, and the medical examinations required before Hajj?

It is disliked for a woman in ihram to comb her hair, fearing hair loss. If dead hair falls, there is no penalty. But if live hair falls due to combing, she must offer a fidyah (expiation), which is fasting for three days, or feeding six needy persons, or slaughtering a sheep. Her Hajj is not invalidated by this. Entering ihram for Hajj from Makkah. The first 'tahallul' (partial release from ihram) after 'Umrah occurs upon its completion, and everything becomes permissible. The second 'tahallul' in Hajj occurs after throwing the Jamarat Al-Aqabah, shaving or shortening the hair, and performing Tawaf and Sa'i. The first 'tahallul' in Hajj occurs by performing two out of three rituals: throwing (the Jamarat), shaving/shortening, and Tawaf with Sa'i. With this, everything becomes permissible except sexual intercourse and its preludes. A woman in ihram may wear any clothes she wishes, except for the niqab (face veil) and gloves. There is no harm in wearing trousers under an abaya. As for wearing trousers in front of women, it is permissible if they are loose, but disliked if they are tight and describe the size of the bones.